do a number on
US /duː ə ˈnʌm.bər ɑn/
UK /duː ə ˈnʌm.bər ɑn/

1.
faire des ravages sur, affecter gravement
to cause harm or damage to someone or something
:
•
The storm really did a number on our garden.
La tempête a vraiment fait des ravages sur notre jardin.
•
His ex-girlfriend really did a number on him emotionally.
Son ex-petite amie l'a vraiment affecté émotionnellement.
2.
tromper, manipuler
to trick or deceive someone, often in a harmful way
:
•
The con artist really did a number on those unsuspecting tourists.
L'escroc a vraiment trompé ces touristes sans méfiance.
•
I think he's trying to do a number on me to get me to agree.
Je pense qu'il essaie de me manipuler pour me faire accepter.