open fire on (someone)

open fire on (someone)

1. Literally, to fire or begin firing a gun at someone. The troops opened fire as soon as they saw the militants exit the building.
2. By extension, to begin attacking, criticizing, or interrogating someone. The reporters opened fire on the commissioner with a barrage of intense questions.
See also: fire, on, open
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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