Is there a Yiddish loan word to describe someone incompetent or amateurish, or who is a small-time player in a given field of endeavor? The closest I know of are general-purpose insults like
schmuck, &c., &c., but I don’t think they have the specific meaning I’m looking for.
I learned (by usage-N.E. North America) that a schmendrick is a young, inexperienced, incompetent, and generally ineffectual but well-meaning person; A "babe in arms" fool; A "Mark" for a professional gambler.
"Oy (Oh, Dear!), the poor schmendrick didn’t realize what he was getting into!"