How do you cut a wave in half?

With a sea saw

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Arrr always a good sine.

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I will use this joke on my kid when he wakes up.

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I was hoping you'd say a Michaelson interferometer

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Sea? You mean The brine, knee deep?

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I really wanted to hate this joke, but I couldn’t help snickering.

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How do you cut an ocean wave in half?

That's why the sea is so salty, the shore never waves back.

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With a cutting edge surf board.

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Seems shellfish.