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
Ceel	KAY:L	Dutch
Isa (2)	EE-sah: (Dutch)	German, Dutch, Italian, Spanish
Corey	['kəʊri]
Jordan	['dʒɔ:dn]
Earleen	URL-een	English (Rare)
Beach	[bi:tʃ]