Guitarbrother,
Is it “The Dark Backward” aka “The Man With Three Arms”?
I just read this description on IMDB and… ewww.
Story is about a truly pathetic excuse for a man named Marty Malt (Judd Nelson) who works as a garbage man during the day but at night he’s the worst stand-up comedian and occasionally works in some despicable dives. His co-worker and friend is Gus (Bill Paxton) who eggs him on to keep trying to be a successful comedian. One day Gus notices a lump on Marty’s back and he goes to see Doctor Scurvy (James Caan) who just puts bandages on it. Soon the lump grows into a third arm and Gus has an idea of Marty putting it into his act while he plays the accordion. Gus introduces Marty to a scummy talent agent named Jackie Chrome (Wayne Newton) and he books them on a local TV show starring Dirk Delta (Rob Lowe). The whole look of this film is dark and filthy. Not dirty, filthy! Its downright gross in some scenes and they usually involve the character Gus. In one scene they find the corpse of a woman at the city dump and Gus decides to lick her breasts! In another scene Gus is having a party with a bunch of incredibly obese women and French kissing them.
