Should have been "jumping off a Cliffs notes"

The pun is the lowest form of comedy

You’re no pun

Tell me a funny joke with a dark twist at the end

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Q: What did the barman say to the depressed clown?

A: Why so glum, chum?

Dark Twist: The clown hung himself behind the bar.

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Hey, that really is pretty funny!

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Tell me a funny joke, with a horrendously dark twist at the end

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Why was the math book sad?

Because it had too many problems.

But then the math book realized that it was actually in a much worse situation, as it was being used to bludgeon a victim in a brutal murder.