This is already defined here, but the tag line hasn't been mentioned! "...and I'm the lawn mower!"
by DayleSnail May 12, 2008
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When a girl lets u hit it for weed. Or when a girl trades sex for weed.
Friend 1 - ugh I wish i could fuck Samantha

Friend 2 - she's a stoner, ask her for ass for grass
by Yeaaa098 March 14, 2017
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Your precious buttocks has now become the center of a very farcical taunt. This phrase implies that "you are going down" in the near future. This phrase being said to you means that your inevitable fate is nearing. It is only half of the full sentence "your ass is grass and i'm gonna mow it." Basically someone is threatening you and you better get the hell outta dodge.
"You fucked my wife enough times Todd, your ass is grass!"
by grassy ass lover 1234 December 29, 2016
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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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1.You're dead fool.
2.You better watch it cuz you don't know who you are messing with.
Joe: You are a slut.
Stacey: Say it again and your ass is grass.
by rebel27 December 10, 2008
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someone is finished, someone is through, someone is done for.
Private; Looks like somone spilled your cofee, sir.

Major; Well in that case, somones ass is grass.
by Light Joker July 6, 2004
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