A person that wears the same thing more than once a week. Or wears dirty clothes and busted shoes...a person that is very much capable of getting new shoes and clothes and taking showers but insits on looking like a homeless person...
Man, didn't Brandon wear that outfit yesterday?
Yea...look @ tha grass stains on his shirt!!!
Man dat nigga is a dirty butt!
A girl that is a slut and more than likely has some sort of STD. Usually this word goes hand in hand with mud shark, because most filthy whores like black cock.
"Oh my god dude, I hope you had a rubber on for that dirty butt."