noun - pronounced as 'Jill'. It's a boy you see at your cousin's party who's actually a friend of your friend.
Girl 1: Holy shit, I saw a gyl at my cousin's first birthday.
Girl 2: ...You mean Gyl? Yeah, he goes to my school.
by uuuomnomnom September 20, 2009
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GYL is a stalkerish term when you begin to look into your significant other's life by "Googling your Love." GYL has become popular with Mexican youth in the Cerritos area in California but in 2012, the term has become popular in Corona, California.
Dude 1: "Did you GYL yet?"
Dude 2: "Naaa dude, what happens if I find a bunch of naked pics of her online."
Dude 1: "You already GYL'ed her didn't you?"
Dude 2: "Turns out shes a Pornstar."
by ABI September 10, 2013
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A flirty kind of female Will-o'-the-wisp. Leads you astray, yes, but in the best way.
Jill is a bit of a Gyl Burnt-tayl, if you know what I mean.
by Dirty Carrie July 3, 2009
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Ejaculating an unfathomable amount of cum on a human males back, typically after engaging in homoerotic activities with a male (or trans male).

The word is stemmed from the phrase "light up my back."
“Dude, how was Thailand? Did you get any of their cheap sex massages?"

"Naw dude, I paid them extra to gyl me! It was awesome!"
by JellyDoesMC July 6, 2022
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