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
Get the Musty Finishmug. This really hot guy but smells like pis quite a lot and is VERRY VERRY attractive and abit musty as you can see
by Eddigeh September 12, 2021
Get the musty markmug. by Chase Demoor July 13, 2021
Get the Mustymug. A word a girl would use to be disrespectful to a nice man like the kid she is friends with. Also can be used against her but gets buthurt.
by Aflack_Employee December 6, 2021
Get the Mustymug. How musty was he?
"He smelled like a wet dog, mildew, socks, nut, and septic tank, public bathroom all in one."
ooh, 6in1 deal!
"He smelled like a wet dog, mildew, socks, nut, and septic tank, public bathroom all in one."
ooh, 6in1 deal!
by thefataartist March 21, 2023
Get the Mustymug. 
Jess is a musty bitch.
by Mama Joe Biden November 10, 2021
Get the mustymug.