To push one's fist right into another's asshole. This is also called an JAM UP. Normally used in times of extreme agressiveness. Males in particular detest this as it enlarges the rectal passage by up to six times.
A: Did you see Tom yesterday?
B: No, he skipped school to miss the maths test.
A: I could give him a fucking fist up.
B: Here, let me give you one, you foulmouthed bastard.
A: MOM?!?! NO NO NO! AAAAAAAAAAAAARGH!!!
B: No, he skipped school to miss the maths test.
A: I could give him a fucking fist up.
B: Here, let me give you one, you foulmouthed bastard.
A: MOM?!?! NO NO NO! AAAAAAAAAAAAARGH!!!
by Mr. Knowall September 2, 2010
Yo we don't need to shout black power. When the Labor Day Parade happen again, just put your Right fist up in the air; they'll know what time it is.
by Jay89Jay91 March 20, 2018
When an alternative rock band, once hitting it fairly big due with an original sound, sells out out to a more pop-y sound to sustain fame
Disturbed's old albums were amazing, but their new stuff has totally joined the 10,000 Fists Up Corporate Music's Ass
by JenJen2.0 October 24, 2010