A form of Male masturbation, where the penis is taken between thumb and fore-finger and ground back and forth to orgasm. Practiced by those with unbelievable shrunken genitals. See also Micropenis.

Man 1: Where's he gone?
Man 2: Under the stairs, he's having a Gilby Twist

Gilby Twist by Haroldsonson February 4, 2010

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Gilby

Gilby is quite simply put, a fucking alcoholic, You know Gilby is drunk when he is seen staring off into space, laughing at nothing.

"look at him laughing at nothing"

"Yeah, what a fucking gilby"

Gilby by K-Dawg April 13, 2004

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Nice Gilby

Used as an expression during any duration of awkwardness that exposes one to an uncomfortable situation

"Seriously though....Nice Gilby"

Nice Gilby by Anonymous_Swag November 23, 2011

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Gilby

Gilby parties alot. Meets a lot of new people but both won't remember eachother. Gilby has a huge dick but keeps it on the downlow for people he gets close to

Woman 1: Who was that one guy at the party last night?¿?

Woman 2: ahh I think his name was Gilby

Woman 1: his dick was huge, get me his number next time you see him

Gilby by DaniGrey June 19, 2019

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