Definitions from Wiktionary (knuckle up)
▸ verb: (informal, chiefly African-American Vernacular) To clench one's fist(s) as though in preparation for a fight.
▸ verb: (informal, by extension) To approach a problem aggressively.
▸ verb: (slang) To strike or fight.
▸ Words similar to knuckle up
▸ Usage examples for knuckle up
▸ Idioms related to knuckle up
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▸ verb: (informal, chiefly African-American Vernacular) To clench one's fist(s) as though in preparation for a fight.
▸ verb: (informal, by extension) To approach a problem aggressively.
▸ verb: (slang) To strike or fight.
Similar:
knuckle,
put up one's dukes,
knuckle down,
knep,
knuckle to,
get it on,
catch a square,
duke it out,
roll up one's sleeves,
nut up,
more...
Opposite:
▸ Words similar to knuckle up
▸ Usage examples for knuckle up
▸ Idioms related to knuckle up
▸ Wikipedia articles (New!)
▸ Words that often appear near knuckle up
▸ Rhymes of knuckle up
▸ Invented words related to knuckle up