that one guy in the back of the class who's hair looks like a bird nest and always has sweaty ass hands
girl 1: that guy in the back of the class just called me a slut
girl 2: dw hes a crusty musty dusty sewer rat
girl 2: dw hes a crusty musty dusty sewer rat
by ahaha_slay_yee November 8, 2022

by coochiewaterr February 19, 2021

Logan is musty-busty af.
by deshawn deshae the third April 17, 2023

by u right November 19, 2018

by Pro Rocket League ANALyst April 13, 2022

Derived from the skill of hitting a musty flick (from Rocket League), Someone involved in sexual intercourse gets very close to finishing, and right as they are about to blow a load, they hit a backflip, stick it back in, and bust inside. Basically Backflipping and busting.
I just hit a crazy Musty Finish!
She asked for the Musty Finish
I want him to Musty finish inside of me.
She asked for the Musty Finish
I want him to Musty finish inside of me.
by Senior Hesi February 5, 2025
