Whats your favorite bad joke?

I love to make really bad similes/metaphors like "I have the memory of a fish with very poor memory" or "I'm as tall as a tree thats my height".

What’s the difference between mashed potatoes and pea soup?

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Anyone can mash potatoes.

What’s the difference between a chickpea and a garbanzo bean?

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I’ve never had a garbanzo bean on my face.