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after the consumption of biccies or ecstacy, some people's jaw often drops or sags with constant grinding of teeth. people insecure about their biccie jaw will often suck a lolly pop to hide it or to give them something to suck instead or grinding their teeth.
1. man: "dude what the fuck is wrong with your mouth man, its so saggy and shit"
raver: "aw fuck dont tell me i got another biccie jaw, fuck!"

2. friend 1: dude look at that chicks mouth. its fuken perfect for gobbies
friend 2: nah man shes just got a bicci jaw
by raven mcraver February 22, 2009
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