set something on fire
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set (something) on fire
1. To begin burning something. He was caught setting the records on fire to hide the evidence from prosecutors.
2. To do wonderful or exciting things that cause a great or remarkable sensation; to be extremely popular, famous, renowned, etc. I wouldn't be too concerned with what he thinks of you. For all his money and education, he's hardly setting the world on fire, is he? As a girl, Janet dreamed of setting the stage on fire as a famous actress.
set something on ˈfire
1 (also set ˈfire to something) make something start burning because you want to destroy or damage it: Three youths were accused of setting the house on fire. ♢ Demonstrators had set fire to vehicles and equipment.
2 make somebody/something very interested or excited: Her new book has really set the literary critics on fire.