The Friedberg & Seltzer parodies, e.g. Epic Movie, or what I've seen of them, certainly apply. The gags are so bland and over-the-top, the parodies so random and poor in substance, you just GOT to love these movies :D
The crowning moment must be Wolverine's "middle claw" in Epic Movie - a GAG taken from the original X-Men movie, and made LESS FUNNY than it was there!
If this thread also includes comedy in form of intentional badness, most skits by RedLetterMedia (the Monkey Man Trilogy; the Care Boars; the Grabowskis!) capitalize and DEVOUR this trope. Takes some talent to make every gag as bland as possible, and the sequence of images and "events" so nonsensical and random, while making the viewer jump out from his seat all 5 seconds. Heh :D
The music by "medieval metal" band Manowar goes, too - the music and lyrics are incredibly cheesy, and from what I know, no one really knows whether they're serious or not. But I don't know much about those...