put a damper on

US /pʊt ə ˈdæmpər ɑn/
UK /pʊt ə ˈdæmpər ɑn/
"put a damper on" picture
1.

estragar, colocar um freio em

to have a negative effect on something, making it less enjoyable or successful

:
The bad weather really put a damper on our picnic plans.
O mau tempo realmente estragou nossos planos de piquenique.
His negative attitude always puts a damper on team morale.
A atitude negativa dele sempre estraga o moral da equipe.