be a huckleberry over (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 over my persimmon.

Common Names:

Name	Pronounced	Usage
Soma	SO-maw	Hungarian
Tenzin	-	Tibetan, Bhutanese
Atem	-	Egyptian Mythology
Maja (1)	MIE-ah (German, Polish)	Croatian, Serbian, Slovene, German, Danish, Swedish, Norwegian, Polish
Margareta	mahr-gah-RE-tah (German), MAHR-gah-re-tah (Finnish)	German, Swedish, Norwegian, Danish, Romanian, Slovene, Dutch, Finnish, Croatian
Kiley	KIE-lee	English