Pumping farts

The art of engulfing air with your bum and retaining it and then squeezing it to create a fart. This is a skill that will make you be able to release earth shattering farts for unlimited times. Sometimes those vile ass fumes will not be coped by the average human.

Man1: Hey did you hear my fart
Man2: Yeah it was quiet I’ll teach you how to be pumping farts. Their loud
Man2: *FARTS*
Palm tree: *Flies away*