What is bubby meaning brother?

Bubby is a Yiddish term that is used for brother. It is derived from the word "bubbe", which means grandmother in Yiddish. Bubby is often used as a term of endearment or familiarity between siblings. It can also be used as a nickname for a younger brother by an older sibling. In the Jewish culture, the word "bubby" is used to show love and affection to a sibling or close friend who is like a brother.