That's "Plate Frisbee" and I tend to see it about every 5-7 episodes or so.
st:Guys! I invited you over to my house so you could watch the olympics!
bh:change it back, dumbass! You can watch the olympics any time!
...
b:Yeah... heh, hem, I'd like to order one of those pubic zirchroniums?....
...
st mom: Now I know I can trust Stuart's friends but be extra careful with that
plate! It's 17th century antique!
st: uh... Mom...?
...
andersen: darnit! Who keeps messing with my trash can lids?
...
b: whoa! A dog!
bh:You called it dude!
...
truck driver 1: UFO!!
truck driver 2: I think I'm going to crash... Yup... I'm gonna crash....
...
bh: Duh, duh, OUCH! Duh, duh, duh, duh, OUCH! Duh, OUCH! Duh, duh, OUCH, duh,
duh...
Uh huh, huh huh, or something... Yeah! Yeah! Something! Something!
No, its: B: What is that? A dog? BH: You called it, dude!
Close, but it's funnier this way, for some reason.
BH: What's that word, when, you know, something happens, and you don't expect it? (or something like that). S: You mean "ironic"? BH: No, pecker-butt! Its English! B: It was COOL?! BH: Yeah, that's it! It was cool!
BnB are channel-surfing and discover Barney the Dinosaur. They are repelled by the Great Purple One's message of love. Later, BnB run into a Barney- costumed person at WalMart and they beat the crap out of the Barney person, then are taken to jail, where the only tv station they get is ... a PBS station.