When an under-aged girl performs a BJ leaving her lips all crusty like an unwanteddonut that when you see them you puke and die a little on the inside!!!
a man who is described to be crusty with abnormally over larged butt lips. micropenis and gap teeth and choc-o-lat are normally side effects of the crusty butt lips syndrome.
john: dude, get some chap stick for your crusty butt lips.
