The ultimate example of repetition is Groundhog Day, where Bill Murray's character, Phil Conners is stuck in Punxatawney on Groundhog Day over and over and over.
Most repetitions, however, don't have to be so hit-your-reader-over-the-head-‘til-she's-unconscious.
Consider The Princess Bride. After hearing Vizzini say “Inconceivable!” one too many times, Inigo Montoya gives one of the most famous replies:
Try combining two or three of these aspects together to come up with your own humorous repetition!
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