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.

Common Names:

Name	Pronounced	Usage
Anastacia	-	English
Artemiy	-	Russian
Barbara	BAHR-bər-ə (English), BAHR-brə (English), BAHR-bah-rah (German), bahr-BAH-rah (Polish)	English, Italian, French, German, Polish, Hungarian, Slovene, Croatian, Swedish, Danish, Norwegian,
Rock	[rɔk]
Kacey	KAY-see	English (Modern)
Siiri	SEE:-ree (Finnish)	Estonian, Finnish