Freaky

I remember one night in a motel room years ago after a night out with friends, & before you ask, yes I was drinking, but I woke up and turned the TV on and watched the freakiest movie. The movie was about a guy with an arm growing out of his back. I couldn't turn away from it. It was a comedy but I was never able to get the title. So if anybody remembers a comedy about a guy with an arm growing out of his back and his day to day struggles, please let me know. I couldn't have dreamt it. I was drunk but sober enough to know he did have three arms. I know this sounds really stupid but it's real! I don't think it was a documentary because I was laughing, but I was drunk so I could've been watching Fantasia for all I know. But somebody has to know about this movie.