over your head

over (one's) head

1. Too complicated to be understood by one or someone else. My jokes always seem to go over Stephanie's head, so I'm glad you think I'm funny at least. A lot of this technical stuff is way over my head.
2. Bypassing one's or someone else's authority. She just wouldn't listen to me, so I had to go over her head to her boss and complain about it.
3. Lingering in one's mind as a source of concern or worry. All these bills are hanging over my head, and I don't get paid for another week. I'm so glad that exam is over—it's been over my head for months.
See also: head, over

over your head

1 beyond your ability to understand. 2 without your knowledge or involvement, especially when you have a right to this. 3 with disregard for your own (stronger) claim.
See also: head, over