Verb
use a sledgehammer to crack a nut (third-person singular simple present uses a sledgehammer to crack a nut, present participle using a sledgehammer to crack a nut, simple past and past participle used a sledgehammer to crack a nut)
(intransitive, Australia, Britain, New Zealand, idiomatic, informal) To use disproportionate or significantly excessive force to carry out an action; to do something overzealously.
Synonym: (Canada, US) use a sledgehammer to kill a gnat
Antonyms: shoot an elephant with a BB gun, kill an elephant with a BB gun