keep nose clean


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keep one's nose clean

Fig. to keep out of trouble, especially trouble with the law. I'm trying to keep my nose clean by staying away from those rough guys. John, if you don't learn how to keep your nose clean, you're going to end up in jail.
See also: clean, keep, nose

keep (one's) nose clean

Informal
To stay out of trouble.
See also: clean, keep, nose