final say
This is my last word.
Les femmes auront le dernier mot.
Women will have the last word.
Sa revanche pour les fois où j'ai eu le dernier mot !
Payback for all those times I got the last word!
— Star Trek III : À la recherche de Spock (1984)
And that's my last word.
Is that your final word?
Is that your final answer?
Theon, en tant que directeur, tu as le dernier mot.
Theon, as director, you have the final say.
— Agora (2009)