What's your favorite malaphor?

Everyone knows what a metaphor is, but I prefer malaphors.
A malaphor is a mixture of two common idioms, or cliches leading to the creation of a something new in metaphor form.
Probably the best known is it's not Rocket Surgery. A combination of it's not rocket science and it's not brain surgery.

My personal favorites" We'll burn that bridge when we get to it" and " The road to hell is the spice of life".
What's your favorite malaphor?

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