Used to describe various states of
erection. SEP is an acronym for Semi-Erect Penis which indicates a slightly heightened state of arousal, NEP stands for
Non-Erect Penis which is completely and utterly flacid and FEP which is Fully-Erect Penis which indicates a maximum state of arousal and
erection.
Tom "What do you
think of that
chick, are you getting a SEP, NEP, FEP?"
Vince "She's giving me a FEP, thats what I think"