over your head
US /ˈoʊvər jʊər hɛd/
UK /ˈoʊvər jʊər hɛd/
1.
too difficult or complicated for someone to understand
:
•
The professor's lecture went completely over my head.
•
This advanced math problem is a bit over my head.
2.
without someone's knowledge or approval, especially when it should have been obtained
:
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They made the decision over my head, even though I'm the project manager.
•
Don't go over my head to the director; talk to me first.