When a man masturbates and ejaculates and the sperm (a.k.a. nut) runs down your knuckles of the hand of which he was mastubating with.
Joe: Hey man did you fuck kelly last night?
Drew: Nah, bro she said she didn't want to at the last minute.
Joe: Damn that sucks. So what did you do then?
Drew: Well since she gave me blue balls I had to masturbate to relieve stress, and I accidentally gave myself Nut Knuckles.
Josh: You didn't have to tell me that.
Drew: Hey man you asked.
Drew: Nah, bro she said she didn't want to at the last minute.
Joe: Damn that sucks. So what did you do then?
Drew: Well since she gave me blue balls I had to masturbate to relieve stress, and I accidentally gave myself Nut Knuckles.
Josh: You didn't have to tell me that.
Drew: Hey man you asked.
by Negros Love Maple Syrup October 4, 2016
Get the Nut Knucklesmug. A term for a woman's clitoris. Because of its location in between the legs, it almost resembles a knuckle on a hand in between two fingers.
by The Massiah December 6, 2010
Get the crotch knucklemug. by Sombody Toucha ma Username September 14, 2018
Get the Ugandan Knucklesmug. The vertabrae on your neck between your shoulders
by Meatlessyeti9 January 1, 2017
Get the neck knucklemug. by Angel234IsTheDarkSeraphim March 25, 2025
Get the Middle Knuckle Genealogical Splice OF My Left Knee Accidents Moldmug. by Th3 mountain man September 14, 2020
Get the Polish knucklesmug. The unit of measurement to make your dick seem longer than it is. (use smaller knuckles for better results)
Silas: what's your dick length according to The Knuckles Rule?
Mark: I got a six knuckle dick
Silas: damn bro mine is eight
Mark: are you using your girlfriends knuckles or yours?
Mark: I got a six knuckle dick
Silas: damn bro mine is eight
Mark: are you using your girlfriends knuckles or yours?
by Robotlover1234 December 4, 2022
Get the The Knuckles Rulemug.