young musty 

When a person sticks his or her finger up ones butthole

Person A: "how was your date last night?"

Person B: "let's just say she met Young Musty last night"

young musty by Sjdjxnnsjsksknxnxkx May 31, 2016

young must

An example of a teenage boy who gives off an unappealing and annoying odor. Most of the time he has a strange personality, a weird sense of music, and is socially awkward.

Kid 1:hey check out that kid!
kid 2: yeah, i know look at that young must.
kid 1: I can smell him from here
kid 2: hahahaha

young must by totalnickbro January 1, 2012