Bart: Uh, yeah, I'd like to speak to a Mr. Tabooger, first name Ollie.
Homer: Ooh, Bart, my first prank call! What do I do?
Bart: Just ask if anyone knows Ollie Tabooger.
Homer: I don't get it.
Bart: Yell out "I'll eat a booger."
Homer: What's the gag?
Bart: Oh, forget it.