3:45 ass
A buttocks that is as wide as the span of the hands on a clock when it is 3:45. This phrase can be heard in the Beauty and the Beast skit on Saturday Night Live.
Bart: That girl I had a date with last night... Her butt was too small.
Fred: Well, what kind of butt are you looking for?
Bart: I don't know... I like a 3:45 ass.
Fred: Well, what kind of butt are you looking for?
Bart: I don't know... I like a 3:45 ass.