law unto oneself

a law unto (oneself)

One who does whatever they desire 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!
See also: law, unto

*law unto oneself

Fig. one who ignores laws or rules; one who sets one's own standards of behavior. (*Typically: be ~; become ~.) You can't get Bill to follow the rules. He's a law unto himself. Jane is a law unto herself. She's totally unwilling to cooperate.
See also: law, unto

law unto oneself

A person who is totally independent, especially one who ignores established rules. For example, You can't tell Marge how to punctuate; she's a law unto herself. [Second half of 1800s]
See also: law, unto
References in periodicals archive ?
The dream of autonomy, being a law unto oneself, is broken" (p.