keep one's nose clean

Stay out of trouble. For example, Dad told Brian to keep his nose clean from now on or he'd cut off his allowance. [Colloquial; late 1800s]

Name	Pronounced	Usage
Kerry	KER-ee	English
Jeremiel	-	Biblical
Chin	-	Chinese
Andreu	-	Catalan
Krasimir	-	Bulgarian, Medieval Slavic
Ioann	-	Russian