What is the closest Yiddish equivalent of Mutzi in English?

There isn't a direct, one-to-one translation of "Mutzi" from English into Yiddish. "Mutzi" is a slang term often used as a playful or affectionate nickname, and its meaning can vary depending on context.

However, some possible Yiddish equivalents, depending on the intended meaning, could be:

* מוטעלע (Mutele): This would be the most common and literal translation of "Mutzi" as a diminutive form of "מוטל (Motl)," a common Yiddish nickname for "Matthias" or "Matthew."

* מוטעלע (Mutele) / מוטצ'יק (Mutchik): These would be more affectionate and playful nicknames, similar to "Mutzi."

* ליבּל (Libl): This could be a good option if "Mutzi" is used as a term of endearment for a male friend or relative.

* צוקי (Tzuki): This is another playful nickname, similar to "Mutzi," and could be used for either a male or female friend.

Ultimately, the best Yiddish equivalent of "Mutzi" would depend on the specific context and the intended meaning.