Yeah, that's gonna leave a mark.

In a hilarious display of bad judgment, right-wing hack Dinesh D'Souza guests on "The Colbert Report," and can't quite figure out why everyone is laughing at him.

You can watch the whole thing, or let me save you five minutes and give you the general idea:

BONUS: TBogg gets in a few whacks with his own towel bar here. Metaphorically speaking, of course.