no holds barred
US /noʊ hoʊldz bɑrd/
UK /noʊ hoʊldz bɑrd/

1.
sans retenue, sans limites, sans concession
with no rules or restrictions, especially in a fight or competition
:
•
It was a no holds barred debate, with both sides attacking each other fiercely.
C'était un débat sans retenue, les deux parties s'attaquant férocement.
•
The competition was no holds barred, and everyone fought to win.
La compétition était sans retenue, et tout le monde se battait pour gagner.