Top Definition
A flatulation that is audible only from within the body (intestine). It is a fart with somewhat of a muffled sound; it is similar to the sound of farting into a peice of pvc.
Verb: I just grawliffed in my pants.
Noun: I had a grawliff on your mother's head.
Adj: That sounded grawliffy.
by Trey Cook February 28, 2007
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