Saw it:
To put it as direct as possible, it's an energetic mostly brainless dark comedy. The insults and "dirty jokes" are almost non-stop from beginning to end, most miss, but the ones that hit had me giggling through most of the film. Keep expectations low, it doesn't have near the charm of the first(partly because sequel/partly because the kid is grown up now) and isn't as funny as the first, but it's worth some laughs. If you are all about bang for your buck, I'd see it on TV/Rental, but if you want a black comedy that constantly fires middling jokes at you, you will be pleased.