Put me in the “that shit is moronic and profoundly unfunny” category for that film.
Adventures in Babysitting. Usually not my bag, as far as movie genres go, but I remember cracking the fuck up watching this back in the day, and I was completely sober (though maybe a little tired).
Ah yes. * Don’t f–k with the Babysitter!* 
God, how did I forget Dumb & Dumber?
“Hey guys… Big Gulps, huh? All right, well, see ya later!”
Another Death to Smoochie fan here.
Nobody mentioned the great Travolta trifecta of unintended hilarity yet?
Saturday Night Fever, Stayin’ Alive, and Urban Cowboy are classic bad movies!!
Urban Cowboy has the bonus of Debra Winger’s mechanical bull ride.
- Dude* kicks butt, too as do both versions of The Producers.
Mamma Mia has the potential to be another best-selling DVD that no one will admit to owning.
*Mom and Dad Save The World *. My husband and I may be the only people who saw this at the movies, but we laughed hysterically through the whole thing. You have to have seen not only the old Flash Gordon serials but all those abyssmal '70’s and early '80’s grade Z Sci-Fi/Fantasy movies (usually starring John Saxon) to really appreciate it. It’s a holiday favorite at our house, but we can’t show it to anyone else without getting blank stares.
I wanted to third this movie. We went to see it in a second-run theatre, and we were the only ones in the theatre laughing, I think, and we were laughing so hard we couldn’t breathe. Stupid English dubbing over old Chinese action movies rocks my world, apparently.
I’ll add my vote for Kung Pow–Steve Oedekerk just slays me. Loved his movie High Strung, too. I imagine a lot of people might think that one is stupid.
I’m also a big Oscar fan. That part where his wife is haranguing him and he leans back against the fireplace mantle in a crucifixion position just about makes me wet my pants!
I have to defend Kung Fu Hustle. That wasn’t stupid; it was one of the most stylish and amusing chop socky films I have ever seen, with great characters and amazing action scenes. And blind, musical instrument using, kung fu masters…how can you knock that?
I’m rather fond of Big Trouble in Little China. I don’t know if it’s * extremely * stupid, but the plot doesn’t really make much sense. Funny, though.
Is that Peter Jackson’s zombie movie? I agree, very stupid but hilarious. I’m not sure about “well-made”.
I also agree with Wedding Crashers, especially Will Ferrell’s character - undeniably stupid but tickles my funnybone: “Ma! The Meatloaf! Fuck!” 
Nacho Libre. So far, it’s the only movie I’ve bought on Blu-Ray.
Before I even moused-over the thread, I thought of **Joe Dirt ** and here it is in the very first post.
Even though my husband and I enjoy some stupid movies together (**Tommy Boy ** and Dumb and Dumber, for instance), he makes fun of me mercilessly for laughing at Joe Dirt.
And this teasing comes from a man who still thinks farts are funny!
Cabin Boy. I bought it at Wal-Mart in the $5.50 bin, and have seen it maybe 5 times with different friends. And wouldn’t mind seeing it again. Chris Elliott + bad special effects = uproariously funny.
Fart humor (and bathroom humor) NEVER gets old.
I have to add Drop Dead Gorgeous to this list. I laugh so hard every time Debbie Richards comes out with the stuffed Jesus, and the anorexic girl lip syncs.
The mom is also gold. “Oh my gaaaaaad she’s PREGNANT!”
Oh. My. God. I’m glad you mentioned that. I thought the whole “touch my bass!” part was hilarious.
Starship troopers: not only was the Verhoven version NOT faithful to the book, the scenes of the batlles (with the giant bugs) were hilarious! especially when they had the newscaster broadcasting live from the bug planate:
“Ladies and gentlemen, its a cold planet, a dangerous planet, a…ARRGGRHHH!” (Reporter eaten by giant bug)
True, but it’s his own farts he laughs at.
About a month ago a friend of mine and I watched this stoner movie called **Strange Wilderness ** on pay per view and it was about the dumbest and funniest thing I have ever seen.
Best part was the guys writing nature documentary copy
“Sharks are only found in two places in the world, the Northern Hemisphere and the Southern Hemisphere”