Verb. -Technique used at the gas-pump when you are short on cash and wish to fool the casual observer into thinking that you are not.
Here is an example of The Pump Fake: If you only have $10 to put in the tank, you subtly release the pump trigger a few times between the $8 and $10 mark. Hopefully, this will fool anyone who happens to be watching into thinking that you are simply topping off your gas tank before a long trip, and that you are not actually broke as hell!
When you start to jack a dude off, and before he cums you stop and leave. This is a more vindictive form of a cock tease
A well meaning, but intoxicated Trixie takes Chad home from the bar. Things start to get nasty. She puts her hand down his pants and starts to jerk him off. Something causes her to stop, either revenge or her conscience, and she walks away. He says, "It's not cool to pump fake me like that."
When a woman is willing to give up sex to a man, they both get naked and the man pretends like he is going to make love to her. Instead, he inserts his penis into her vagina for a moment only, and passes out instead.
That bitch got so pissed when i gave her the old pump fake, i was too drunk to get off.
When a male is having sexual intercourse and just before the male is about to cum, a random nun comes out of the closet and pump fakes and scores, giving the male blue balls. OH FUCK.
"Mother Tamara has the best pump fake in the league... Blue balls everytime fucking up my game, bruh"