1. The flaps that a woman's piss comes out of!
2. Term used to express immense frustration, best used in a board meeting when you've spilt coffee on your trousers
1. Honey, I'm not going to go down on you til you wash your pissflaps .
2. "Jenkins, what's the forecast on shipping sales for the next quarter?" "PISSFLAPS! Oh I'm sorry, what was the question?"