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. When a 300lb person has dimples where knuckles should be because his palms are too fat making his knuckles depressions and then fingers a woman
by Emicho November 18, 2015
Get the dimple knucklemug. by let's.be.honest December 28, 2014
Get the knuckle tatmug. by don whey February 6, 2018
Get the ugandan knucklesmug. by Th3 mountain man September 14, 2020
Get the Polish knucklesmug. by subliminal.toes August 16, 2021
Get the Fudge Knucklesmug.