The act of inserting a gas pump into your anal cavity and proceeding to pump gas.
I wouldn't pledge Chad's frat, I heard he likes getting gas ass
by Graet August 4, 2018
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What some people consider the rules of hitchhiking, where the hitchhiker, upon pickup or throughout the trip, must either provide: 1)Gas for the car, 2)Some type of sexual satisfaction, or 3)Some type of drug, usually marijuana.
Hitchhiker: Yo dude, can i get a ride?
Dude: Gas, ass, or grass.
Hitchhiker: *pulls out baggie* Grass.
by punkbass_20x6 January 15, 2006
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When someone asks you to drive them somewhere, they can pay with gas, ass, or grass. Gas(money for gas), ass(a sexual favor), grass(marjuana).
Ling Ling: "I just drove you all the way to Africa. You know the rules... gas, grass, or ass."(gas, ass, or grass)
by mikec00l October 23, 2007
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The saying states that if a man is providing a ride or transportation for a girl. She must have common courtesy to supply the man with one of 3 things in return. 1. Grass (Marijuana) 2.Gas (Fuel for his vehicle 3. Ass (Intercourse). If she doesn't give him 1 or more of these 3 things then she would not be able to get a ride. Hence the term nobody rides for free. This became a slang in the mid 1970's when hitchikers would hitch rides down interstate routes. This term applys to homosexual males who want the same 3 options given to a man passanger. Typically a girl would pay with ass due to the fact she doesn't have funds hence why she is hitch hiking for a ride. So her ass is the only asset she can use to get transportation from point A to point B. This still happens today. In fact more then ever. So if you see a girl hitch hiking be sure to apply the gas, ass or grass tactic in your adventures. You may score gas for your ride, some grass to smoke. or usually the most appreciated of the 3. the good old sacred anal sex. So enjoy and proceed on.
Ashley- Hey wait!!

John- Hey whats wrong?
Ashley- I am stranded here in the interstate. I have to walk 105 miles till I get home. my car broke.

John- oh, im so sorry. Do you want a ride?

Ashley- Oh my gosh yes. please. your a life saver

John- But of course Gas, Ass or Grass. Nobody rides for free.

Ashley- Oh I don't have Money on me and I don't smoke.

John- well i don't know then. i guess i cant help

Ashley- No wait, ill give you the ass. i don't want to walk please.

John- Get in

Ashley proceeds to fuck john in the back of his chevy Tahoe until he cums in her mouth and then this will pay for fare of the ride he is providing her. Pretty curel tactic but it is applied often. especially in low population exposed areas without a lot of foot traffic.
by GM123 November 15, 2014
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something pokemon will let you use as a nickname while "fart" is blocked
pokemon: would you like to nickname caught koffing?
you: yes
you: *types fart*
pokemon: you are not allowed to use that word
you: *types ass gas*
pokemon: ok, ass gas will be transfered to box 3
by who says I have a plan? August 18, 2020
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When a woman queefs in a man’s ass and then the man farts in her vagina at the same time making an ultimate vibration.
i had pussy-ass gas leak with my stepsister and she queefed so loud that ass checks are still vibrating
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The act of using sex, either intercourse or fellatio, as a form of payment for getting a ride from someone
Hey Bryan, Tina is wanting a ride home from work, u think i should take her?
As long as she has the Ass for Gas why not, she is kinda cute.
by Partsguru13 March 2, 2018
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