(slang, transitive) To beat up, annoy or insult (someone).
I'll need to brush up (on) my Greek before my trip to Athens.
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(idiomatic) To review; to improve an existing but rusty or underdeveloped skill.
: You have commissioned me to paint your shop, and I have done my best to brush you up like your neighbours.
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To paint, or make clean or bright with a brush.
April 10, 1706, Alexander Pope, letter to William Wycherley
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