Definitions by RealOG6ix9ine

Musty flake 

A word describing someone who thinks they are funny but their jokes never hit.
Or someone that smells like shit and you have no other way to describe the way they stink.

“You’re literally a musty flake”

Person a: You’re an actual bitch
Person b: Bro, you are an actual Musty Flake.

Musty flake by RealOG6ix9ine October 18, 2020