get away with murder
to not be punished for doing something wrong

[TahlilGaran] Dictionary of Contemporary English ▲

get away with murder
[informal]
to be allowed to do things that other people would be punished or criticized for.
Dave gets away with murder because he's so charming.

[TahlilGaran] English Idioms Dictionary ▲

get away with murder
to do something very bad without being caught or punished
The students were able to get away with murder while the substitute teacher was in the school.

[TahlilGaran] English Idioms Dictionary ▲

get away with murder
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.

[TahlilGaran] English Idioms Dictionary ▲