Top Definition
Where the demonstration of shoving your anal cavity on someones cranium. While also rubbing your anal cheeks around there head to leave a stench of fresh booty.
Me: "I just want to stick my anal cavity on your cranium!"
Some Random Guy: "NO!! YOUR GONNA MAKE MY HEAD AN ANAL CAVITY CRANIUM!!!"
Me: "Hehe ;)"
~Anal Cavity Cranium
by Brett'z Cranium August 13, 2011

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