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1.
To brandish one's knuckles, usually before a fight or to induce a fight.

I knuck We knuck
You knuck You All knuck
He/She/It knucks They knuck
"Knuck if you buck!" = Put up your dukes if you want to fight. (To knuck)
by Ross Owens December 05, 2005

Words related to to knuck

buck druckt duck smuck verb