Short for guillotine, the act of chopping off the tip or head of the penis and squeezing the contents into a woman's mouth.
Hey bro, I think that girl wants you to give her a gilly.
by hellyeahbrother April 03, 2019
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To describe something or someone that is or who is little and cute at the same time.
1)I saw this gilly puppy at the pet store the other day.

2)My mother made these gilly cupcakes for the kids the other day.

3)That is girl is gilly.
by KIKO November 09, 2013
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A male gunt. A gut that covers the willy, like a gunt which covers the c*nt.
That guy has a huge gilly!
by conniesbitch June 24, 2009
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a girl who looks like a fish, or even sometimes thought to be part fish

(comes from fishes GILLS)
woah... i was eating sushi with gillie and i almost confused her with a tuna roll

whats that smell? oh...gillie just walked in.

gillies pretty...but such a fish.

she is such a dead fish in bed...

when i kissed her it felt like i was making out with a fish...what a gillie
by fishmonger222222222222222 December 09, 2007
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1) a cabin of crazy ass girls that stay up late and party like none other
2) Current members are: L-dog, C-money, da Colbster, Daiz, Meow, Funkalicious-K, 420 Sally, JAY-Zar
Andrew: "Yo David, what you doin' tonight?"
David: "Shit man, I'm goin to Gillies to get laid!"
Andrew: "Sick, lemme come with you"
by Binnacle Boy4 March 08, 2005
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someone that is very pretty but makes sure to deny it when someone tells that person that they are pretty.
him: your pretty
her: oh no I'm not...
him: your such a gillie..
by sarah loser June 25, 2005
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