keep one’s nose clean

keep (one's) nose clean

To behave properly; to stay out of trouble. You better keep your nose clean, kid, or you're going to run into trouble you can't handle.
See also: clean, keep, nose
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

keep one’s nose clean

tv. to keep out of trouble, especially trouble with the law. I can keep my nose clean. Don’t worry.
See also: clean, keep, nose
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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