be a law unto (one)self

To do whatever one desires and/or ignore rules and regulations. If you need to delegate, I wouldn't ask Gina—she is a law unto herself, and it's hard to persuade her to do anything she's not interested in. How many times has Jason been arrested now? Geez, he sure is a law unto himself!

Common Names:

Name	Pronounced	Usage
Goizeder	-	Basque
Royle	ROI-əl	English (Rare)
Iepthae	-	Biblical Latin
Zekİ	-	Turkish
Wayne	WAYN	English
Dunstan	DUN-stən (English)	English (Rare), Anglo-Saxon