META: Looking for a joke like "What's long and hairy? A chihuahua. Also my penis."

Sorry, I know this is unusual, but hopefully not against the rules. I'm writing a paper for school and trying to illustrate an ancient joke by comparing it to a modern one.
I'm looking for something like an anti-joke followed by the punchline. I know grad school is an okay place for dirty humor, but I would rather use either a cleaner or at least a better joke to make my point.

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