To masterbate before hand of actual sexual intercourse to not be as sexually aroused which means lasting longer. Usually done at home or in the car waiting for her to finish getting ready.
Bro 1: Man Ashley wants to pipe but i don't want to disappoint & bust under 3 mins
Bro 2: Bro just Prenut!
A girl that suddenly gains a massive amount of weight from out of the blue, creating an assumption of preggers, possibly one of a pregnant dinosaur and/or minotaur. Excessive ugliness added to such a state can also lead to centaur allusions.