I CANNOT EMPHASIZE ENOUGH THAT THIS TRAILER IS NOT SAFE FOR WORK!  It features filthy language and even giant rubber wieners.  It is, however, hilarious.  Click through if you can handle so rough language and a few rough visuals.

The premise of this movie is simple, two girls that don't really like each other become room-mates, then become co-owners of a phone sex line.  There's a great cameo in here from Seth Rogan (Knocked Up, Green Lantern) as well.  Once again, this is VERY naughty.