last word
On dirait bien le célèbre mot de la fin.
It sounds like the famous final word.
Je te laisse le mot de la fin ?
Would you like to have the final say?
— The Wandering Earth 2 (2023)
C'est le mot de la fin, ainsi se termine notre émission.
Those are the final words, and that brings our show to a close.
— Gramps Is in the Resistance (1983)
He had the last word.