thijj

When a girl is so flat her booty cheeks curve inward, producing a j-shaped butt cheek.

Guy 1: Hey dude, would she got any?

Guy 2: Are kidding me! She ain't even flat, she thijj with 3 j's man.

by YoungbloodG123 November 05, 2018

thiJJ

Pronounced thige. Thicc, but with a flat ass.

Damn, bro, she's thiJJ.

by DampeS8N2 July 05, 2022