have a chip on your shoulder
心怀不满或愤怒，对某人或某事抱有敌意或敌视的态度。
口语·描述易怒或记仇
英文释义
to have a persistent feeling of resentment or anger, often from a perceived injustice or unfair treatment
例句
He always argues with everyone—he's got a chip on his shoulder about being overlooked.
典故来源
源自19世纪美国习俗，男孩将木屑放在肩上挑衅他人，若对方打掉木屑则引发争斗。