Andrew - "Classic PEGS ha"
2. On a one night stand the second you have cum you quickly make an excuse and get the hell out of there! This due to the post sex PEGS period.
Derived from the hypothetical idea of "pinning (or pegging) a label on someone".
"I'm sick of people pegging me for a homosexual. There's nothing wrong with a little judicious manscaping here and there!"