Top definition
The second you get into a car after it's been sitting in the hot sun for hours and your clothes, jewelry, and everything on you heats up in the worst way.
Man, I barely got in the car and I'm already instahot! I'm sweating, gross..
by TFS July 24, 2005
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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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2
when you only look good online/instagram, and not in real life.
Dude, that girl is so instahot. Such a disappointment.
by annnnoooooonn December 28, 2016
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Dirty Sanchez Plush

It does not matter how you do it. It's a Fecal Mustache.

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