by Marty's ass September 25, 2020

(FUCK KNUCKLES) slang expression used to describe something unexpected, usually in a loud manner.****** It was just submitted and was just submitted and accepted but my phone dropped the lettet K, so it apoeared as Fuck Knucles. So sorry about that********
by Tabago's mom March 30, 2019

Louis, a mild-mannered demure guy, had just started dating horny, hung Dave. Louis wanted to "take things slow" and not fornicate right away. This gave Dave frustrated blue balls. One day after work they were heading upstairs and Dave grabbed Louis and went to the bathroom, where he pulled Louis' hand around and together they jerked Dave off leaving Driveby Knuckle Children all over the bathroom.
by Uncle Joosie March 20, 2024

If you think about it, what is a knuckle sandwich? You slap your fist into your palm, that’s the bread and the sandwich bits. Where’s the other piece of bread?
But a bagel… a bagel’s still a bagel with one side missing. Hence, you get the “Knuckle Bagel.”
Arguably more threatening than a “knuckle sandwich.”
But a bagel… a bagel’s still a bagel with one side missing. Hence, you get the “Knuckle Bagel.”
Arguably more threatening than a “knuckle sandwich.”
by jbongo September 12, 2025

by Lerner May 17, 2014

To masturbate to something.
Student 1: Man, our English teacher is so hot!
Student 2: Yeah did you see her new profile picture?
Student 1: Yeah man, I'm gonna throw it some knuckle tonight.
Student 2: Yeah did you see her new profile picture?
Student 1: Yeah man, I'm gonna throw it some knuckle tonight.
by FertDeDoosh August 3, 2017

1. Don't be such a fuck knuckle.
2. That fuck knuckle crossed the highway without looking.
3. If you're going to be a fuck knuckle, you can piss off.
2. That fuck knuckle crossed the highway without looking.
3. If you're going to be a fuck knuckle, you can piss off.
by xxxxmints May 17, 2017
