1) a woman's bush begrudgingly offered, knowing that she will be able to use the favor to her advantage at a later time; i.e., a crabby female who allows playing in her pubic grass now as a sacifice for a later advantage

2) a woman's pubes loaded with crabs
Damn I was horny, but the ole lady was in a pissy mood so I refused the crab grass knowing that if I played today, I would be paying tomorrow.
by pornhorn50 January 13, 2010
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A stank ho's patch of pubic hair. Referring to the probable existence of "crabs" or pubic lice (Pthirus pubis) residing therein.
Man, I was rollin' in that bitch's crab grass last week and got eat-up with those little fuckers.
by dandi December 20, 2003
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A potential slang term for marijuana, named by Steven Colbert during the Wednesday, April 29th edition of the Colbert Report.
Which of the following is a slang term for marijuana?
Pot
Wacky Tobacky
Sticky-Icky
or Cuban Crab Grass?
by SwineFluQuarantiner May 1, 2009
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