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a large set of man boobs
tonys bull titties are sweating
by AKField August 06, 2008
An exclamation which expresses complete incredulity. Can hardly be believed to be true.
Person 1: So I hooked up with Jane last night.
Person 2: No way!
Person 1: Turns out she's a man.
Person 2: Bull titties!!!
by Rajafraja August 07, 2006