do away with
131get\ 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 …
132walk away with something — walk away with (something) to win or get something easily. The German soccer team is favored to walk away with the championship. She got a minor injury and walked off with a million dollar insurance settlement …