Knuckle means: Any of the joints between the bones of the fingers.. There is no real cause for parental concern; it is descriptive vocabulary rather than risky behaviour. If your teen uses it, context will usually make the intent clear. A short, curious question about where they heard it is usually all that is needed to know whether to follow up.
knuckle
Any of the joints between the bones of the fingers.
Seen in the wild
5 citations · last seen May 2026
Seen in the wild
BlueskyMay 2026
I do think I should actually knuckle down and make an oc that is a representative of a house whose monopoly on certain resources is threatened by the order. Bernie brought up that idea and it’s such a cool thing to ex…
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BlueskyMay 2026
Step Three: turning it over. Because gripping the steering wheel with white knuckle panic wasn’t giving ‘healthy coping. Call to action: What’s one thing you’re handing over before it hands you your ass?
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BlueskyMay 2026
Apollon Timecop back with a blend of Overtime and Bare Knuckle https://www.newsbeep.com/nz/413095/ Similar to Double Impact and Bloody Hooligan, Timecop is one of Apollon Nutrition’s in-house collaborations or joint…
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BlueskyMay 2026
@jonka.bsky.social Sorry for the @ but u found your little room and id be very intrigued to hear more about that climber x teeth fan fic ~<3 also im sure its been said to hell and back but have you considered a vr ve…
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BlueskyMay 2026
Occasionally, I think about IRON as knuckle tats.
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Definitions
#1·Apr 27, 2026
Any of the joints between the bones of the fingers.
Beef knuckle is from the knee joint. Pork knuckle, or ham hock, is from the joint between the tibia/fibula and the metatarsals of the foot of a pig, where the foot was attached to the leg.
Origin: From , from , from , from , as . Cognate with , , , . More at knock. thumb|10 of the 14 knuckles () of a human hand, circled in red thumb|Roast knuckle () from Schweizerhaus, Vienna. Origin information sourced from Wiktionary contributors (CC BY-SA 4.0).
For parents
Knuckle means: Any of the joints between the bones of the fingers.. There is no real cause for parental concern; it is descriptive vocabulary rather than risky behaviour. If your teen uses it, context will usually make the intent clear. A short, curious question about where they heard it is usually all that is needed to know whether to follow up.
For ESL learners
knuckle means: Any of the joints between the bones of the fingers.. Register: neutral, standard English. A common learner mistake is using the word in a register it does not fit, or assuming a single global meaning; native speakers immediately notice when slang appears in formal contexts, so always check the surrounding register before producing it yourself. A formal-English equivalent (a synonym or descriptive phrase) is usually safer in writing. When in doubt, paraphrase rather than reuse the slang form.
Heard in the wild
“I do think I should actually knuckle down and make an oc that is a representative of a house whose monopoly on certain resources is threatened by the order. Bernie brought up that idea and it’s such a cool thing to explore friction-wise.”
— Bluesky· May 2026“Step Three: turning it over. Because gripping the steering wheel with white knuckle panic wasn’t giving ‘healthy coping. Call to action: What’s one thing you’re handing over before it hands you your ass?”
— Bluesky· May 2026“Apollon Timecop back with a blend of Overtime and Bare Knuckle https://www.newsbeep.com/nz/413095/ Similar to Double Impact and Bloody Hooligan, Timecop is one of Apollon Nutrition’s in-house collaborations or joint hybrid…”
— Bluesky· May 2026“@jonka.bsky.social Sorry for the @ but u found your little room and id be very intrigued to hear more about that climber x teeth fan fic ~<3 also im sure its been said to hell and back but have you considered a vr version of white knuckle, possibly after its full release?”
— Bluesky· May 2026“Occasionally, I think about IRON as knuckle tats.”
— Bluesky· May 2026
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#2·Apr 27, 2026
(by extension) A mechanical joint.
Cluster: drugs
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#3·Apr 27, 2026
(sports, billiards, snooker, pool) The curved part of the cushion at the entrance to the pockets on a cue sports table.
brass knuckles
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For specific readers
Why is this section here?
Slang is read by different audiences for very different reasons. The For parents view re-explains the term in plain, non-judgemental language so a caregiver can understand what their child means without needing the surrounding subculture. The For English learners view focuses on register (when it's safe to use), formal alternatives, and common mistakes — what a textbook won't teach you.
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🗺️About Regional & Other slang
Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
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Tags
Other words near "knuckle" (K)
know shit from Shinolaknow when to fold 'emknow whether one is Arthur or MarthaKnoxknuckknuckerknuckleboneknuckle childrenknuckle dusterknuckleheadknucklerKnuckles
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Semantically related
- knucklebone77%
A bone that forms a knuckle in the human hand, in an animal's paw or any bone that forms a similar bump.
- knacker68%
One of two or more pieces of bone or wood held loosely between the fingers, and struck together by moving the hand.
- knuckle sandwich66%
(slang) A punch to the face, especially to the mouth.