Definition of Yiddishism in US English:

Yiddishism

noun

  • 1A Yiddish word or idiom, especially one adopted into another language.

    • ‘Throughout the 20c, Yiddishisms have continued to make their way into English, increasingly as slang.’
    • ‘His speech was punctuated by Yiddishisms, Hebrew, Greek and Arabic.’
  • 2Advocacy of Yiddish culture.

Pronunciation

Yiddishism

/ˈyidəˌSHizəm/