knuckle down to something

knuckle down (to something)

in. to get busy doing something. Please knuckle down to your studies.
See also: down, knuckle, something, to
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
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References in periodicals archive ?
IF IT'S YOUR BIRTHDAY: Your first six months are hectic, with lots happening on the travel and social scene, but things will quieten down and you might knuckle down to something more serious.
Star birthday
A sky surfer's life is a short one and one day he knows he will have to hang up his surf board and knuckle down to something a bit more down to earth.
Mr Frost's got his head in the clouds; INTERVIEW Fashion & Lifestyle Editor Carole Ann Rice meets the mild-man nered Birmingham man whose hobby takes him surfing where angels fear to tread
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