What is Bull Titties?
1.
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!!!
See
2.
a large set of man boobs
tonys bull titties are sweating
See