Definitions by Haroldsonson

Gilby Twist 

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