A variation on the spelling of the name Kristen. Chicks with the name Krystyn are typically unusually sexy. They usually feature modest sized titties, and have abnormally phat asses for their size. They are usually Petite women never exceeding 5'4".

Internet persona(s) who happens to follow you and you happen to follow them back and maintain communication with and have a mutual liking for eachother whether it be friendship wise, etc. (Mutuals if more than one mutual)