National uppercut Your sister day

It’s when you fucking destroy your sister cause she’s a little prick.

“Ima fucking upper cut the shit outta you Stephanie”

“Why?”
“Cause it’s National uppercut your sister day”

by MexiAlan October 30, 2019

cranium uppercut

When somebody uses their skull to hit your nose from underneath! Auch.

"Oh shit, my girlfriend just cranium uppercutted my nose. I can't go to class for two days straight!!" - Asbear

by PussyDonut February 10, 2011