i disagree, it's not tastefully done. But then again,that's american comedy for you! i'd give it three stars instead of four.
I don't understand how much tasteful one can do comedy of this kind. I would say the jokes were delivered the way they were supposed to be at the time they were supposed to be delivered.
I've seen this movie, and I appreciated the fact that the writers didn't so much as shy away from the crude jokes as embraced them fully and made the jokes their own.