What's the difference between bubby and fubby?

Bubby

Definition:

• (n.) A woman's breast.
• (n.) Bub; -- a term of familiar or affectionate address to a small boy.

Example Sentences:

• (1) On 31 January 1991, Clinton, known to his family as “Bubby”, and his girlfriend left a party to go to a caravan with another man.

Fubby

Definition:

• (a.) Alt. of Fubsy

Example Sentences: