fight hammer and tongs

(redirected from go at it tooth and nail)

fight someone or something hammer and tongs

 and fight someone or something tooth and nail; go at it hammer and tongs; go at it tooth and nail
Fig. to fight against someone or something energetically and with great determination. They fought against the robber tooth and nail. The dogs were fighting each other hammer and tongs.
See also: and, fight, hammer, tongs