A joke whose humor derives from
repetition, ideally becoming funnier
each time it is repeated. Must be repeated at least three times, otherwise it's
a Brick Joke.
Kermit the Frog: No,
Fozzie! Do not answer that telephone!
Fozzie Bear: But, Kermit, all these terrific, funny things happen when I do answer it!
Kermit: I'm aware of that! I'm aware of that, Fozzie! Is there no end to this
running gag?!
— The Muppet Show