"you're a crusty musty "shut up" "no, you shut up you crusty musty"  or  "stop picking your nose crusty musty""
a name you call people to annoy the shit out of them
""you're a crusty musty "shut up" "no, you shut up you crusty musty"  or  "stop picking your nose crusty musty""" What is the definition of "crusty musty"?