Perhaps it was Monty Python's The Meaning of Life? The gentleman in question was one Mr. Creosote I believe, whose chest cavity was exposed after a single wafer thin after dinner mint triggered a thoracic eruption.
visitors can't see pics , please register or login
This scene is available below but is not for the feint of heart.
https://www.youtube.com/watch?v=GxRnenQYG7I
Oh I did see that one even though I don't watch much tv. Yeah, the first time I saw that I thought it was so gross but the 2nd time years later it was so over-acted that it was funny.
But no, I guess it was called Alien Armageddon but I can't find the disgusting scene. IMDb (Internet Movie Database) shows Snorway is in a film being produced right now, as well as ones in 2011, 2012 and 2014, usually as the "voice" as far as I can tell.