be/go at somebody/something hammer and tongs

be/go at somebody/something ˌhammer and ˈtongs

(informal) do something, especially argue or fight, with a lot of energy and noise: The boss went at me hammer and tongs. I’ve never seen him so angry.The couple in the flat upstairs are always at it hammer and tongs.This idiom refers to the loud noise made by a blacksmith at work when he is making horseshoes. He uses a pair of tongs to hold the hot iron and a hammer to beat the iron into the shape of the shoe.
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