What is Hook Up Hippo?
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The animal mascot of hooking up or potential hook ups.
Formed by projecting both index fingers from forehead to form hippo ears, and then bending knees.
Person One: Look at Matt and Alyssa, they just kissed.
Person Two: Hook up hippo!!! *does gesture*
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Originally stated by Admiral Ackbar in Starwars, it has now become a Meme on the Internet.
When I found out the hot chick was really a ..