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go at it hammer and tongs
To do something or perform some task with tremendous fervor, determination, energy, or forcefulness. An allusion to the force with which a blacksmith strikes metal using his or her hammer and tongs. What started as a minor disagreement has escalated into a heated argument, and the two have been going at it hammer and tongs ever since.I need to go at this paper hammer and tongs if I want to keep my A in the class.