Clearly I was delaying this watch for over the past couple of years. Finally, I ended watching it during this holiday season (December 2015). I am glad to get over with it and sad for dragging it this far, because the film was not that bad as I have heard.
May be we call it the men's version of the movie 'Teeth'. Since the sexual intercourse is kind of complication for the theme from this movie to draw a better storyline, they have introduced a fictional character that detachable from the human body. That is very funny as well as disgusting.