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Phrasal verb -- "to cool up" -- (transitive or intransitive). It means to improve the cool of something or someone.
This car design is too dull. We need to cool it up.

The candidate is uninteresting. He needs to cool up.
by Kilkrazy August 18, 2004
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1. (V.) A phrase used in tense situations to tell someone to chill out or ease up.

2. (V.) A phrase used to encourage the improvement of quality of a person, place, or thing.
1. Bro, it's just a dollar. You need to cool up fam.

2. Bruh your fit today is lame. Cool up.
by Ty Young August 13, 2017
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