The force of physics enacted upon ones arm after fist pumping for an extended period of time that causes one to continue fist pumping for a long period of time after. Can last anywhere from hours to days depending on the severity of the fist pump.
Artur: Why are you still fist pumping, its been days since that party ended.
Joe: Can't bro, I've got fist pump momentum.
Joe: Can't bro, I've got fist pump momentum.
by JoeBroFoSho September 19, 2011

Noun
If you play a sport where there's any system of brotherhood (football, basketball, jousting etc.) In the locker room, some guy (usually the widest kid) would pat you on the gouche/anal area with talcum powder of some sort, burns like hell
If you play a sport where there's any system of brotherhood (football, basketball, jousting etc.) In the locker room, some guy (usually the widest kid) would pat you on the gouche/anal area with talcum powder of some sort, burns like hell
Normal player: good game guys, let's hit the showers
Fucking weird ass kid: I can't wait to give Jeffrey a powder pump, his balls are HUGE.
Fucking weird ass kid: I can't wait to give Jeffrey a powder pump, his balls are HUGE.
by Freaky Pussy Popper August 17, 2017

by Singerman13 July 24, 2016

A thin,
Effeminate guy who lifts weights but never gets big, a skinny guy with little muscles . Sports “fake butch “ T ‘s w police or fireman logos.
Effeminate guy who lifts weights but never gets big, a skinny guy with little muscles . Sports “fake butch “ T ‘s w police or fireman logos.
by Davedale August 13, 2019

by SamuelleDeChamplaine November 30, 2023

Buffalo Pump: getting fisted buy a guy with really large hands so it feels like you just had sex with a buffalo.
by Sweet Beaver March 5, 2025
