you’re cheeks 

Deprived from the saying “ima clap them cheeks”, which can be used to reference sexual intercourse and/or defeating beyond compare. This is most commonly used when someone sucks so frikkin terribly that an insult unparalleled to other must be used.

Mans: “You mise well pull up after school”.

Logical Human: “Bet, you’re cheeks, ima fold your ass”.

you’re cheeks by Lil’ Nut January 13, 2018

You're kidding my ass cheeks 

Dying due to some bullshit from the other team or the game itself

*gets hip fired head shot through a wall*
"YOU'RE KIDDING MY ASS CHEEKS*

You're kidding my ass cheeks by Dondo March 18, 2020