Green’s Dictionary of Slang

a Jew; also as adj.

1946		Mezzrow & Wolfe Really the Blues 70: Don’t fiddle with the Yiddle, or he’ll riddle you in the middle.
1955		B. Schulberg On the Waterfront (1964) 120: The only Yiddle workman Pop had ever heard of.
1963		A. Baron Lowlife (2001) 40: This was one of those old Yiddles who are stooped.
1963		C. Wood ‘Prisoner and Escort’ in Cockade (1965) I iii: You a Yiddel? Living in the past. That’s your trouble – unless you’re a Yiddel?
1984		Benjamin & Pearl Limericks Down Under 85: He chucked the little yiddle.