get your wires crossed

US /ɡɛt jʊər waɪərz krɔst/
UK /ɡɛt jʊər waɪərz krɔst/
"get your wires crossed" picture
1.

se mélanger les pinceaux, se croiser les fils

to misunderstand someone or something, especially in communication

:
I think we got our wires crossed because I thought you were coming tomorrow, not today.
Je pense que nous nous sommes mélangé les pinceaux parce que je pensais que tu venais demain, pas aujourd'hui.
It seems like we've got our wires crossed about the meeting time.
Il semble que nous ayons mélangé les pinceaux concernant l'heure de la réunion.