- get away with murder
- get away with murder1. Lit. to commit murder and not get punished for it. (See also get away with something.) •
Don't kill me! You can't get away with murder!
2. Fig. to do something very bad and not get punished for it. •That guy always gets away with murder—just because he's cute.
•You will spoil your son if you let him get away with murder. You should punish him for his backtalk.
* * *{v. phr.}, {informal} To do something very bad without being caught or punished. * /John is scolded if he is late with his homework, but Robert gets away with murder./ * /Mrs. Smith lets her children get away with murder./
Dictionary of American idioms. 2013.