have a bad effect (on someone or something)
(redirected from have a bad effect on us)have a bad effect (on someone or something)
To affect someone or something adversely. I'm sorry I'm so cranky—this headache is having a bad effect on me. The rain didn't actually have a bad effect on our trip—we all had a lot of fun staying indoors and playing board games.
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.
have a bad effect (on someone or something)
to be bad for someone or something. Aspirin has a bad effect on me. Cold weather has a bad effect on roses.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.