Definition of "make a killing" []

• To win or earn a large amount of money. (verb)

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• "Most recently, it had been bought by a consortium of lawyers who were going to make a killing by converting it to expensive condo-lofts opening onto city views on the outside with interior mezzanines looking down into a fancy center atrium."
• "He contends that Morris “used government positions to make a killing from the war,” a blithe bit of shorthand that echoes Arthur Lee but is largely contradicted by the facts."
• "Merchandisers will make a killing on them and then lose their shirts trying to anticipate the next craze."