Is this supposed to be a satire?
I'd understand if this was supposed to be a vulgar satire of modern society: how sex is placed on a pedestal as your ultimate goal in life, old men lust after young girls given the opportunity, women are sluts who have no pride at all, college guys are meatheads, the concept of breaking off an engagement to be with a homeless girl you met a few days ago....
However, it's just a dumb comedy that tried too hard by throwing in swear words and moronic scenes. It's like the script was written by a 14 year old who imagines that this is what 'cool' adults are like.