As a native Yiddish speaker (it was my first language!) I can assure you that "Hasenpfeffer" is not a Yiddish dish, it is rabbit and most definitely _treif_. Yiddish speakers would not eat it.

https://en.wikipedia.org/wiki/Hasenpfeffer

Shleimiel and Shlmazal are yiddish, via Hebrew.

https://en.wiktionary.org/wiki/%D7%A9%D7%9C%D7%99%D7%9E%D7%9...

and

https://en.wiktionary.org/wiki/%D7%A9%D7%9C%D7%99%D7%9E%D7%9...