KnuckleSandwich 

When you put your dick in two slices of bread whilst your partner tries to eat the sandwich. If they fail to no finish you have to beat the fuck out of them

I did the knucklesandwich challenge today and I failed : )

KnuckleSandwich by RahultheMan January 24, 2021

Knucklehead McSpazzotron 

Member of Helloburp Games
Enemy to Helloburp, Bazinga, Yeehaw Man, Bite, Mervin, Arby, Blood Taka, Somebody (Deceased), and all new members

Knucklehead McSpazzotron is way too long.

Knucklehead McSpazzotron by Mister Burp February 26, 2021

Knuckles.exe

The second victim to die by Sonic.exe (Probably wouldn't have died if he was smart enough to not hit the sonic.exe decoys.)

Someone: Sonic.exe appeared im my room..
Someone: Knuckles became Knuckles.exe now.
Tails.exe: Appears in your room
Someone: A-

Knuckles.exe by fred boi July 12, 2022

knuckleheadstrong 

Simultaneously engaging in unwise behavior, or poor decision making (a "knucklehead"), while being so self-assured and confident (headstrong) in your information, data, choices, and actions that you are doomed to failure, that is, without the benefit of sheer dumb luck. Successful outcomes tend to lead to greater knuckleheadstrongness until unemployment, disaster, dismemberment, or death occurs.

That dude in charge of our diving trip was so unbearably knuckleheadstrong that he ignored the shark warnings and said he knew they weren't interested in humans. He's going to miss that leg, but on the upside he is great at swimming in circles now.

knuckleheadstrong by Something Cryptic June 28, 2023

pork knuckles

Used abroad and means the same as camel toe.

Her shorts are so tight she has pork knuckles.

pork knuckles by The Dead President August 9, 2010

Bloody Knuckler

Someone who gets into fights for the fun of it. The term refers to reckless boxers getting bloody knuckles from not wearing hand-wraps

Brian: did you hear about Ted Cruz's filibuster?
Adam: yeah, he must really enjoy wasting tax-dollars.
Brian: we need fewer bloody knucklers like him in Congress.

Bloody Knuckler by Btwice November 7, 2013

throwing knuckleballs 

Throwing knuckleballs: code for camel toe
Normally used in a situation to warn a friend to dodge the possibility of having to get an eye full of camel toe. The name knuckleball refers to the resemblance of a camel toe and a the way a baseball players fingers look when throwing a knuckleball.

Scott: Watch out she's throwing knuckleballs

Tom: Thanks for the head's up

throwing knuckleballs by Alphapyr0 January 15, 2014