put your foot down
US /pʊt jʊər fʊt daʊn/
UK /pʊt jʊər fʊt daʊn/

1.
taper du poing sur la table, mettre le holà
to use your authority to stop something happening
:
•
My parents finally had to put their foot down and tell me I couldn't go to the party.
Mes parents ont finalement dû taper du poing sur la table et me dire que je ne pouvais pas aller à la fête.
•
The teacher had to put her foot down about the excessive talking in class.
La professeure a dû mettre le holà aux bavardages excessifs en classe.