It must be noted that one of the funniest things I've ever seen is at 1:11 in the Sir Mix-a-Lot video, when the magazine title Cosmopygian appears in the background. It made my laugh my shapely ass off when I first saw it, and it still cracks me up. Oh, and the best thing about laughing your ass off is that, at the end of the day, you've still got your ass.
It must also be noted that I've been suffering a case of writer's block this evening, and found a convenient backdoor to creativity.
UPDATE: Seems like Ned's jumping on the butt bandwagon now. Shake it, Mr Beaumont, shake it like the 1906 earthquake!