Person 1: damn!! You really gave him a taste of your knuckle sandwich!
Person 2: Eh.. it was more of a knuckle panini just because how anxious I was.
Person 2: Eh.. it was more of a knuckle panini just because how anxious I was.
by Potato_chat June 30, 2021

Dude this chauch was talking serious trash at the club last night, so I straight up Knuckle Fucked his ass.
by Freak Sho September 26, 2010

A man with such a small dick that all it feels like when he fucks a woman is him fucking her with the knuckle on his fist.
HER: Enough playing around stick it in already
HIM: What you talking about Willis? It is in!
HER: I should have known you'd be a fuck knuckle.
HIM: What you talking about Willis? It is in!
HER: I should have known you'd be a fuck knuckle.
by Cereal Killer Bitch March 20, 2017

So, the gloves went off and we engaged in fisticuffs feeding ourselves five knuckle sandwiches until one of us saw stars
After the argument I just fed him a five knuckle sandwich
After the argument I just fed him a five knuckle sandwich
by Koltinn May 18, 2024

A condition often aquired at the end of the NCAA Basketball season during Conference Championship Week and the first few rounds of the NCAA Basketball Championship--affectionally known as March Madness. It results from changing the channel every few seconds trying desperately to catch every second of every game, but in the end never fully achieving the satisfaction and release from the closure of seeing every play of every game.
Caller: "Dude, have you been watching March Madness hoops?"
Friend: "Hell yes! The only thing is, I've got to put a bag of frozen peas on my knuckles in between games. Having four games on at once is killing me, I've got a serious case of Blue Knuckle...it's a damn good thing I've got two hands!!!
Friend: "Hell yes! The only thing is, I've got to put a bag of frozen peas on my knuckles in between games. Having four games on at once is killing me, I've got a serious case of Blue Knuckle...it's a damn good thing I've got two hands!!!
by Guerre July 31, 2012

by AnastasiaDC4L August 28, 2023

Another term for a lesbian. To get a visual example, bend both the index and middle finger of each hand and bump the mid knuckles together thus simulating two vaginas bumping each other as lesbians do to get sexual pleasure, such as the extremely hot act of tribbing.
Guy 1: "Hey dude, have you met the new girl? She's hot!"
Guy 2: "Yeah, but dude she's a knuckle bumper. There's rainbows and shit all over her social network profile."
Guy 2: "Yeah, but dude she's a knuckle bumper. There's rainbows and shit all over her social network profile."
by MrFriendzone April 13, 2016
