The ultimate insult, most commonly targeted at an annoying sibling or tradesman that comes to your house to do his job. There is no comeback to this, you automatically lose.
J: A can you do my makeup for my New Years party.
R: no she will mess it up remember what happened last time?
A: R you are such a butthanger.
R: :o
A slang term for "Chronic Anal Candidiasis", or in infection caused by a fungi growth on the anal pore. Not unlike a yeast infection, the symptoms include severe itching/burning and a smelly fuckin' white discharge.
One that is junior to an accomplished asskisser. They simply cannot get into proximity to kiss the ass so they must be content to hug the butt until the proper opportunity arises.
Batman is a serious asskisser to Commissioner Gordon his sidekick Robin is terribly jealous. Oh well, I guess he just has to pacify himself being a legendary butthugger.