be a huckleberry above (one's) persimmon

dated To be somewhat or slightly beyond one's abilities or talents. Primarily heard in US. I'd like to help you fellas out, but I'm afraid herding cattle is a huckleberry above my persimmon.

Common Names:

Name	Pronounced	Usage
Jaquelyn	JAK-ə-lin	English (Rare)
Arend	-	Dutch, German
Sexton	['sekstən]
Nicodemo	nee-ko-DE-mo (Italian), nee-ko-DHE-mo (Spanish)	Italian, Spanish, Portuguese
Pollyanna	pahl-ee-AN-ə (English)	Literature
Gordian	-	History