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
Klementyna	kle-men-TI-nah	Polish
Barack	-	Arabic
Adoniram	-	Biblical
Adalfarus	-	Ancient Germanic (Latinized)
Malle	-	Medieval English
Kayly	KAY-lee	English (Rare)