Top definition
the invluntary action of screaming at every blade of grass you see. also, a fun game to play in the car with your parents or friends.
Jeffy - "Hey Billy look, a blade of grass!"
Jeffy - "Wow, you have got to get that grasscreamanitis checked out"
by Mit Romney January 23, 2008
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Cleveland Steamer Plush

The vengeful act of crapping on a lover's chest while they sleep.

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