This dictionary was shamelessly lifted in its entirety from Flying Booger's Half Mind Catalog, so he gets all the credit for this compendium.  Many of the terms are not used by the PH3, but are included to give insight into hashing lingo used world wide.

• Alcohol Abuse spilling or otherwise wasting beer at any time during a hash, especially during down-downs
• Annual General Meeting (AGM) in many hashes, the occasion for annual erections of hash mismanagement; in others, an excuse for a party; also Annual General Piss Up
• Annual General Piss Up (AGPU) see Annual General Meeting
• Aprés dinner, drinking, or continued partying after hash formalities have concluded; see On-Afters, On-On-Ons, On-On-On-Ons
• "Are You?" (R U?) question shouted by the pack to FRBs, meaning "Are you on trail?"
• Arrow directional trail mark; also see True Trail Arrow, Pack Arrow
• A-to-A trail that ends where it starts
• A-to-B point-to-point trail
• Auto-Hashing hitching a ride to the end, a heinous violation of hash etiquette
• Back Check (BC) trail mark* indicating that runners should turn around and retrace their path while looking for true trail, which branched off somewhere before the BC; sometimes accompanied by a number indicating the number of marks the pack should go back before looking for true trail
• Bad Trail (BT) 1) a section of trail which goes nowhere; 2) trail mark* indicating the end of a BT; see also False Trail, YBF
• Balls Check trail mark* indicating a check or intersection which must be solved by male hashers before the pack can proceed
• Bash bicycle hash
• Basher bicycle hasher
• Bashing hashing by bicycle
• Beer see Piss
• Beer Check 1) beverage stop; 2) trail mark* indicating a beverage stop
• Beer Master mismanagement member in charge of ensuring an adequate beverage supply for hash events; also "biermeister"
• Beer Near trail mark* indicating proximity of beverages; can be associated with a beer check, on-in, or on-home
• Blow Job see Bad Trail
• Boob Check trail mark* indicating a check or intersection which must be solved by female hashers before the pack can proceed
• Butt Chug See Debauchery
• Butt Painting See Debauchery
• B-Van vehicle used to transport beer, food, hash bags
• Caught Hare a hare who has been overtaken and physically caught by a member of the pack; normally honored during Down-Downs
• Chalk basic substance used for marking trail; see also Flour, Paper
• Chalk Talk trail instructions for virgin or visiting hashers
• Check trail mark* indicating an intersection where true trail may take another direction
• "Checking!" answer shouted by FRB to pack when asked "Are You?", indicating that FRB has not determined whether the trail he's following is true or false
• Circle assembly of hashers at trail's end, normally for the purpose of conducting down-downs
• Co-hare hare's assistant . . . in many hashes it is normal to have two or more hares laying trail together; in others it is a rare event
• Couth Monger see also Hash Devil
• C-word euphemism for "competition" or "competitive"
• Dead Fucking Last (DFL) last member of pack to finish trail, sometimes honored during down-downs (though this goes against the grain of hashing's "non-competitive" ethos)
• Dead Hare hare who lays the entire trail before the pack sets out; sometimes accompanies the pack to ensure it doesn't get lost (see Sweeper)
• Dead on Trail (DOT) hopelessly lost
• Debauchery Any of several morale-building mixed-sex activities indulged in by hashers, usually during aprés, usually (but not always) confined to American hashing circles
• Doo-Loop looping section of trail designed to slow down the pack and give the hare more lead
• Down-Down the ceremony of quaffing a beverage (an honor)
• Down-Downs the ceremony of honoring deserving hashers after the trail
• Down-Down Box a clearly defined square or rectangular area in which all down-downs are consumed. Anyone who enters this box, for whatever reason, must do a down-down
• Eagle Trail an optional section of trail, longer or more difficult than the standard trail
• Erections mismanagement elections, normally accomplished during the AGM
• False Trail see Bad Trail; a section of trail going nowhere, designed to slow down the pack and give the hare more lead
• F.B.A.C. Fat Boys' Athletic Club; a kinder, gentler subset of the hashing community with rigorous membership standards
• Flour a basic substance used to mark trail; see also Chalk, Paper
• Front Running Bastard (FRB) faster member of the pack, also the one member of the pack who finishes trail first (and is normally "honored" for same, since one should not be competitive)
• Full Moon frequently an occasion for an evening hash; many kennels hash every full moon throughout the year
• "G" Day February 11th. A.S. Gispert ("G"), the father of hashing, was killed in action defending Singapore from invading Japanese forces on this date in 1942
• Gay general-use adjective used to describe something as limp, lame, bland, or wimpy; opposite of Slutty
• Grand Master mismanagement member, ceremonial leader of the kennel; also Hash Master
• Grand Mattress mismanagement member; sometimes used as the title for a female grand master
• Grand Mistress mismanagement member; sometimes used as the title for a female grand master, but often used as the title for someone who organizes hash parties and dinners
• GrrrAnimals matching or coordinated running attire worn by poofters, normally a punishable offense
• Hare hasher who lays the trail; see Live Hare, Dead Hare
• Hare Arrow trail mark*, normally means "true trail," but not always
• Hare Raiser mismanagement member in charge of lining up hares for future trails
• Harrier any hasher, male or female; in some hashes, a male hasher
• Harriette female hasher
• Hash 1) the Hash House Harriers, as in "I run with the hash"; 2) an individual kennel, as in "I run with the New York Hash"; 3) the actual event, as in "I'm hashing tonight"; 4) trail marks*, as in chalk, flour, or paper
• Hash Bag bag of dry clothes and other post-trail necessities; see also Shag Bag
• Hash Cash 1) mismanagement member; the treasurer; 2) financial resources of the hash
• Hash Crier mismanagement member; calls other members to let them know when and where runs will start
• Hash Devil mismanagement member; in some hashes, the person in charge of down-downs or singling hashers out for violations; see also Couth Monger
• Hasher any Hash House Harrier
• Hash Etiquette euphemism for "rule"; also see Rule # 1
• Hash Flash hash photographer
• Hash God see Self-Appointed Officious Assholes
• Hash Haberdasher mismanagement member in charge of T-shirts, hats, mementos, etc
• Hash Harlot mismanagement member, often a female religious adviser; meaning varies between kennels
• Hash Horn mismanagement member; carries a horn or bugle on trail, blows it to encourage and guide the pack
• Hash House 1) the Selangor Club in Kuala Lumpur, meeting place of the Mother Hash; 2) any hash hangout, usually a bar
• Hash House Harrier any hasher
• Hash House Harriers (HHH or H3) 1) hashers; 2) the hash
• Hash House Horrors hashers' children
• Hash Hymn song sung by the pack during down-downs; see also International Hash Hymn
• Hashing the act of running a hash trail
• Hash Master mismanagement member; see Grand Master
• Hash Name nickname, usually bestowed after a set number of runs or in honor of a notable incident; not used by all hashes
• Hash Olympics games played during interhashes, usually involving drinking; can involve debauchery
• Hash Quack mismanagement member in charge of administering first aid to injured hashers
• Hash Scribe mismanagement member normally in charge of writing the hash trash
• Hash Shit (Hash-It, Hashit) offensive or embarrassing object given to a hasher for notable on-trail accomplishments, normally carried by the awardee on subsequent trails until it is awarded to someone else; sometimes also used as a nickname for the awardee
• Hash Trash newsletter containing writeups of past runs and announcements of upcoming events
• Hash Time an erratic measure of a precise phenomena. If the hash is scheduled to start at 2:00 pm, the actual start may be 2:17 or 2:29, or ???
• Hat in most hashes, not to be worn while doing down-downs
• Hounds the body of hashers in pursuit of the hare, see also Pack
• HUYA a plunger, acronym stands for "head up your ass"
• Interhash regional, national, or world hash gathering
• Intersection see Check
• International Hash Hymn "Swing Low, Sweet Chariot"; see Hash Hymn
• Joint Master (JM) co-GM; in some hashes, an assistant to the GM
• Kennel Hash House Harrier chapter or club
• Live Hare hare who gets a nominal head start and is pursued by the pack as he lays trail
• Loop see Doo-Loop
• Long-Cutting Bastard (LCB) 1) slower member of the pack; 2) someone who gets horribly lost and comes in late
• Mismanagement hash officials; sometimes elected, sometimes appointed
• Mooning mild form of debauchery
• Mother Hash Kuala Lumpur Hash House Harriers, first organized in 1938, still going strong and an inspiration to us all (except for the bit about "no women")
• M-word euphemism for "marathon"
• Naming Committee group of hashers who bestow hash names upon new hashers
• Nash Hash a national interhash
• New Boot see Virgin
• New Shoe drinking vessel used during down-downs; see also Tea Bag; heinous violation of hash etiquette
• No Blow hasher who forgets his whistle, normally honored with a down-down
• On-Afters see Aprés, On-On-Ons, On-On-On-Ons
• "On-Back" shouted by FRBs to the pack when FRBs encounter a back check
• On-Before where hashers gather before the start of the hash, usually a public establishment
• On-Home 1) trail's end, also On-In; 2) trail mark* indicating proximity to end
• On-In see On-Home
• On-Off start of trail
• "On-On" 1) shouted by FRBs or hounds to indicate they're on trail, sometimes used only to indicate true trail; 2) trail mark* in lieu of a true trail arrow
• On-On-Ons see Aprés, On-Afters, On-On-On-Ons
• On-On-On-Ons see Aprés, On-Afters, On-On-Ons
• "On-One" ("On-Two," etc) shouted by FRBs or hounds to indicate the number of flour marks they've seen on an unexplored trail, usually after a check
• On-Sec mismanagement member normally in charge of hash rosters, run records, etc
• On-Sex more than one on-sec
• "On the Ice!" 1) in many kennels, the block of ice upon which honorees sit during down-downs; 2) command given by the GM or RA to down-down recipients
• On-Up! (or down, under, over, through, etc): what hounds sound to let those following know that the trail has become a challenge and the type of challenge being encountered
• On-X trail mark* meaning "on across," usually found near freeways, airport runways, rivers, etc
• Oz Australia
• Pack hashers in pursuit of the hare, also Hounds
• Pack Arrow mark left by a member of the pack indicating direction taken; follow at your own peril
• Paper basic substance used to mark trail; see also Chalk, Flour
• Pelican Drinking See Debauchery
• Phantom Hare secret hare, unknown to the pack
• Photo Hash theme hash where a photograph shows the pack where to run to; another photograph will be hidden at that location, and so on . . . a variation is the "Clue Hash," where hashers find their way by written clues
• Pick-Up Hash hash where the hare is chosen at the last minute, usually through a drawing or game of chance; head starts are shorter and the hare is expected to be caught often--the hound catching the hare becomes the next hare, and so on
• Piss see Beer
• Piss Drinking See Debauchery
• Pissed drunk
• "Piss Off" go away, get fucked, etc
• Piss-Up drinking session; a party
• Piss Wagon see B-Van
• Player obnoxious asshole; see also Poofter
• Poofter literally, a homo; in hash use, 1) a homo; 2) anyone not welcome at the hash (see Rule # 6); 3) a poseur; 4) a person who hangs around the hash but isn't really a hasher; 5) a major whinger; 6) a non-contributor in general; 7) a "player"
• Poofterism behavior associated with poofters
• Pre-Lay act of laying the trail or sections thereof before the hash; sometimes a violation, sometimes not, depending on kennel traditions; like masturbation, widely practiced but seldom admitted
• Private Party act of participating in a non-circle conversation, thereby showing disrespect to the GM during down-downs
• Queef say what?
• Ranging the process whereby certain hounds run with total disregard for the trail
• Receding Hareline list of upcoming hash events, normally printed in the hash trash
• Red Dress Run theme hash where hares and pack wear red dresses; variations include lingerie runs, mini-skirt runs, muumuu runs, nude runs, etc
• Regroup trail mark* used in some hashes, where FRBs must wait for all members of the pack to arrive before setting out again
• Religious Adviser/Advisor (RA) mismanagement member normally in charge of blessing the hash and settling disputes over tradition; sometimes in charge of down-down ceremonies
• Respect reverential attitude of right-thinking pack members toward the GM during the circle and down-downs
• Rule universally-understood tenet of acceptable hash behavior; never called a "rule" but often euphemized as "tradition" or "hash etiquette"
  • Rule # 1 "There are no rules"
  • Rule # 2 "See Rule # 1"
  • Rule # 6 "No poofters!"
• R-word euphemism for "race," "run," or "rule"
• Self-Appointed Officious Assholes see Hash God
• Shag Bag a bag of dry/warm clothing for use after the hash; see also Hash Bag
• Shandy "lady's" down-down drink made of beer and ginger ale; most often seen in the UK or Down Under
• Shiggy jungle, thick vegetation, rocks, cliffs, streams, etc; especially mud
• Shiggy-Shaggy (aka Zicky-Zacky): a chant made by the hash in response to anyone verbally screwing up. The offender must drink beer, but not necessarily a full down-down
• Shitty adjective used to describe a really good trail
• Short-Cutting the act of attempting to short-cut the trail, see also Zenning
• Short-Cutting Bastard (SCB) habitual short-cutter, a title of esteem in most hashes
• Singapore Back Check (SBC) trail mark* indicating that true trail branched off somewhere between the SBC mark and the previous check
• Sixty-Nine a number fraught with significance
• Slutty general-use adjective used to describe something as strong, robust, or satisfying; opposite of Gay
• Song Master mismanagement member; leads down-down songs
• Sweeper hasher, normally an experienced member of the pack, assigned to follow the pack in order to ensure no one gets lost; this function is sometimes performed by a dead hare
• Tea Bag sock or sole insert from a new shoe, the liquid from which is wrung out into a violator's mouth after he or she has finished a down-down from the offending footwear
• Tradition euphemism for "rule"; also see Rule # 1
• Trail Recce act of scouting a potential trail; hare practice
• True Trail the correct trail that leads to the on-in
• True Trail Arrow trail mark* indicating true trail
• Trusted Agent Hound who has been told where the on-in is in case the pack gets lost
• Turkey Trail optional section of trail, normally shorter and easier than the main trail
• Turtle Check trail mark* indicating that FRBs should wait at the mark until the slower hashers (the turtles) have caught up; normally used on dead hare trails to keep the pack together (in some hashes this is known as a Circle Check)
• Up-Up trail mark used to taunt the pack on a hilly trail
• Violation any infraction of hash etiquette or tradition, on- or off-trail
• Violator he or she who must be punished, normally by down-down
• Virgin first-time hasher; also applied to first-time hare
• Virgin Lay 1) a virgin hare's first trail; 2) a new kennel's first hash
• Walkers infant, infirm, or elderly hashers
• Wanker literally, a masturbator; in English/Australian use, a sort of "Sad Sack" character; in hash use, an everyday hasher
• Wherdafugarwee? from a hash song, what a hound might say when lost
• Whinge whine
• Whinger whiner; see also Poofter
• Whinging whining
• X trail mark* used to indicate a check or intersection
• Yak Circle a clearly defined circle next to the Down-Down Box in which all vomitus is deposited
• YBF bad trail mark*; stands for "You've Been Fucked"
• Zenning striking out cross-country in anticipation of finding the on-in; see also Short-Cutting
• Zicky-Zacky see Shiggy-Shaggy

* asterisked trail marks are normally made only by the hares; non-asterisked trail marks may be made by either the hares or members of the pack