have a chip on your shoulder
idiomPart ofchip
have a chip on your shoulder — idiom
1. to be angry or upset about something that happened in the past, and behave in a
1.idiom
Definition
to be angry or upset about something that happened in the past, and behave in a way that shows you feel you have been treated unfairly
Example
Ever since he lost the competition, he has had a chip on his shoulder about the judges’ decision.
Yusuf had a chip on his shoulder because his older brother always got more attention.