anything positive that happens to anyone cool
The following are highlight:

giving facials

lots of hot chicks at a party

cleavage

finding a check for 750 bucks in your sock drawer
by bradley December 4, 2003
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A writing utensil that uses a sponge filled with flourescent fluid and not ink, therefore not a pen
Cartman> Eh guys, this is a high-light-er, not a pen!
Kyle> your fat Cartman
by Mr. Mofo August 20, 2005
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Being overly sexually aroused causing the signs of sexual desire to be physically known.
Another word for horny.

Lilly: Demitri, I so want you right now ;) I can see your highlighted as well ;).

Demitri: Oh Lilly ;) lets do it!
by Cumisha Jones January 19, 2009
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to put a lot of emphasis on one thing someone did
you are always calling me out for that one thing, stop highlighting me
by simplysato February 18, 2020
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The Highlighter is a sex act in which the male, while on top, pulls out, and when he finishes leaves some of his seed in the female's hair, thereby giving her highlights.

This act is best performed when the male is drunk enough to just sit there and laugh while the female freaks out.

Additional bonus if after The Highlighter is performed, the female returns for a second round of sex.
"I pulled out and completely painted this girl with cum. I even got some in her hair and gave her some highlights."

-"Did you pull the Highlighter?"
-"Yea, but she was still back in 20 seconds to get fucked again."
by ALXiPC October 24, 2009
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noun.- The few things or only thing you remember after being completely and totally baked, stoned, toasted, drunk, hammered or shit faced. Usually the most epic portion or even moment of the night.
Dude #1- Bro the only thing I remember is when you rolled the joints on a bible.

Dude #2- Dude that was the HIGHlight of my life!
by Hallidayy June 7, 2010
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Magical pens used to take away a smartass attitude.
"Man, that dude needs a highlighter right about now. He's a dick.
by Smush S. November 2, 2010
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