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

Exceptionally beautiful girl - extra EXTRA beautiful if they’re name starts with an M or ends with an A.
by Unknown FJIPPY2DRIPPY June 13, 2021

Similar to the ONJ(jee) one however Musty is known as the "mystical one" the title going against Jee's "magical one". Both are from the same lore/universe but ONM has a deeper meaning. Unlike ONG you're swearing on the mystical one himself. But you're also swearing on his WD40. Musty uses WD40 as a form of moisturizer. This is usually followed with the gif "ONM(musty)" gif which consists of WD40.
by anonymous August 17, 2024

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

by Mookie612 April 5, 2019

When chowing vagina, the female scoots up slowly from vag to ass leaving a female duck butter from your nose to your chin
by Bran November 26, 2017

Jess is a musty bitch.
by Mama Joe Biden November 10, 2021
