be/go at it hammer and tongs
US /biːt əˈraʊnd ðə bʊʃ/
UK /biːt əˈraʊnd ðə bʊʃ/

1.
discutir ferozmente, lutar com unhas e dentes
to argue or fight with a lot of energy and noise
:
•
They were at it hammer and tongs over who should pay the bill.
Eles estavam discutindo ferozmente sobre quem deveria pagar a conta.
•
The two teams went at it hammer and tongs for the entire game.
As duas equipes se enfrentaram com unhas e dentes durante todo o jogo.