Teen Titans, Season 2

Beast Boy:
Why are ducks so funny? Because they're always "quacking" jokes.

Raven:
Pull over. I think I'm gonna be sick.

Starfire:
Oh I see. It is humorous because ducks lack the large brain necessary for the telling of jokes.

Robin:
Actually Starfire, it just wasn't humorous.

Raven:
Because Beast Boy lacks the large brain necessary for telling jokes.

Beast Boy:
C'mon, Raven, you know I'm hilarious. And I'm not gonna give up until I get you to smile. OK, why did the aardvark cross the road?

Raven:
To beat up the idiot telling jokes about him?

Cyborg:
(laughs) The idiot telling jokes... (laughs)

Robin:
Now that's funny.

Starfire:
[Perplexed] Please, an aardvark is some form of duck?

Beast Boy:
(sighs)