on (one's) wrong side(redirected from on somebody's wrong side)
on (one's) wrong side
To be or become displeasing to one; to do something that provokes one's anger, contempt, or dismissal. The superintendent is a powerful woman in the school district, so be sure to not to get on her wrong side. I'm afraid I may have gotten on your friend's wrong side with my off-color remarks.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.