Are you're referring to what a grandmother is called in Yiddish (not Hebrew) - Bubbeh - which in American English is often pronounced "bubbie"? The origin of the word is probably old Russian. In modern Russian a grandmother is called "babushka", which in America refers to a kerchief worn on the head, probably because that's what Russian peasant women used to (and for all I know still do) wear.
Bube has no meaning in Hebrew, but it looks like it's possibly a Yiddish word.
'Bub' is a slang term for champagne, so she's "sippin that champagne."
Sorry, no answer here bub..
Can be an insolent term of address for brother or buddy
Lil Bub goes by Bub.
you need to go to the toilet bub.
it means bub
hang on to the water wagon
Jeffrey Bub was born in 1942.
Bub Bridger was born in 1924.
Bub Bridger died in 2009.
Bub Kuhn was born in 1899.
Bub Kuhn died in 1956.