\Bub"by\ (b[u^]b"b[y^]), n. [Cf. Prov. G. b["u]bbi, or It.
poppa, Pr. popa, OF. poupe, a woman's breast.]
A woman's breast. [Low]

\Bub"by\, n. [A corruption of brother.]
Bub; -- a term of familiar or affectionate address to a small
boy.