above your head

above (one's) head

Being too advanced or difficult for one to be able to comprehend, understand, or complete; beyond one's abilities. I thought I could handle this advanced math class, but the stuff we're learning is just way above my head.
See also: above, head

above (someone's) head

Not understood by one because it is too complex or subtle for their comprehension. My jokes always seem to go above Stephanie's head, so I'm glad you think I'm funny at least.
See also: above, head
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

above your head

beyond your ability to understand.
See also: above, head
Farlex Partner Idioms Dictionary © Farlex 2017
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References in classic literature ?
You wonder where these monstrous things came from, and it takes some little time to satisfy yourself that the airy and graceful fabric that towers above your head is made up of their mates.
If the cut is to your hand or arm, raise it above your head. If the injury is to a lower limb, lie down and raise the affected area above the level of your heart so the bleeding slows down and stops.
My worst nightmare I'm lying in bed and Kieran said don't move as a massive spider is above your head jeeeeez can't sleep now Katie Price About to sing in Minsk.
Lift the club above your head keeping your arms straight.
When you are a little kid dreaming of being a footballer, you dream of lifting trophies above your head.
Using a slow and controlled action push the dumbbells above your head, extending the arms but keeping a slight bend in the elbow at the top.
Repeat 10 times, then swap arms; Hold the bottle above your head with your arm straight.
Then raise your arms above your head and check either side again.
A rhombus with a metal ceiling; an underground hospital carved out of rock; ceilings that float above your head. What is Armstrong up to?
Lie on your belly with your arms long above your head on the floor.
Chances are, unless you have a vehicle with a sunroof, there isn't a heck of a lot going on in that real estate above your head. One vehicle that is taking advantage of that space is the '04 F-150.
Zero level (the level at which air blows out of the hood instead of sucking into the hood) may need to be lowered below conventional levels on high-speed machines to knee-level or below instead of above your head. Zero level and hood balance are not always proportional--open basement doors and other factors can drive zero levels down.
Focus straight in front of you, keep the palms together and stretch above your head.
With your right arm raised above your head, use the flat surface of your fingertips of your left hand to feel your right breast.