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The single most positive affirmation between friends, colleagues, what have you. Said affirmation carries more weight than even those of normal knucks, secret hand shakes, high fives, etc. An Upknuck is preformed when two, or more, people bump fists with metacarpals facing toward other participant and phalanges facing up towards the sky. "Turn that pound upside down."

Rules to Upknuck:
1. You don't deny an Upknuck at any point one is offered. Said denial of Upknuck can result in said Upknucker refusing any further Upknuck related offers to said Upknuckee with Upknucker being completely justified.
2. You don't blow up an Upknuck. Ever.
Dude 1: "Just got a rim job from Sally!"
Bro 2: "Upknucks, brooooo!"
Upknuck by BradJacobGrose September 6, 2010
Related Words

Upknucking 

To violently give oral sex and ejaculate in a person's mouth, then uppercutting them so hard that the ejaculate flies out of their mouth.
"That date last night was so crazy, she asked if we could do some upknucking."
Upknucking by Claym0re March 7, 2025

Summer Teeth 

When someone has a lot of missing teeth.
Mannn, that dude has summer teeth!
What do you mean?
Summer here, summer there...
Summer Teeth by BeckPot August 2, 2012
Word of the Day on May 24, 2026
The grindset is a contemporary ideology of self-exploitation disguised as strength, deeply tied to the aesthetics of the “sigma male” and to new digital forms of patriarchy. It promotes the idea that human worth depends on productivity, economic success, absolute emotional control, and the ability to work endlessly, turning vulnerability, rest, community, and tenderness into signs of weakness. Beneath its rhetoric of discipline and power often lies a profound inability to relate healthily to pain, fragility, and human interdependence.
“That’s the grindset, brother. While weak men sleep and complain, sigma males stay disciplined, work in silence, suppress emotions, and build power while everyone else wastes time chasing comfort.”
Grindset by Omega-Male May 22, 2026
Word of the Day on May 23, 2026
well known from south park
rednecks get angrry that future folk took there jobs so they yell
They took ouare jerbs!
Them future folk took ouare jerbs!
jerb by Jimberley Kim April 7, 2005
Word of the Day on May 22, 2026
An Irish phrase meaning shit, derived from ass
(Not to be confused with the literal description of one's buttocks)
"Did you hear the song Aylek$ dropped?"
"Hardly. Her music is absolute cheeks."

"My boyfriend say LaFlame is cheeks."
"Tell your boyfriend I said it's his mixtape that's cheeks."
Cheeks by thecartisan April 26, 2020
Word of the Day on May 21, 2026