I have checked the threads related but none of them really suit my context. I have found "to put a pin in my balloon" but I am not sure "Ses mots eurent l'effet d'une douche froide sur Léa." Context: The girl is telling her friend a funny story and she is laughing. She realized that her friend is not responding the way he should. Then he tells her that he is going to leave his girlfriend who happened to be the girl's best friend. "Well apparently my little story didn’t make you laugh. Is there something wrong?" "I met someone Lea. I think I am going to leave Sofia." It had the effect of a cold shower on Lea. "Just don’t tell me that she is a bimbo in her early 20th and good looking!"