go over someone's head idiom
不经过（某人）直接越级上报
to speak to or ask permission from someone who has more authority than the person who you would normally go to in that situation
Amanda was refusing to give me the week off so I went over her head and spoke to the boss. 阿曼达不批准我请一周的假，于是我就绕过他直接跟老板说。