3 definitions by Sharon Ann

Oi, or Oy is cockney now mebbe, but its Yiddish roots go way back. In Yiddish it's a general expression of existential angst. Its roots are pure Hebrew, where "Oy" means "woe".

"Maven" comes to us from the Hebrew, by way of Yiddish. In Hebrew, "mavin" means "he knows". So a "maven" is someone in the know, a real expert, or maybe sometimes just a self-styled expert.

Adjective, origin unknown. Flaky, space-cadet, but in a *nice* way. Not generally used outside the Philadelphia PA region.