The Collaborative International Dictionary of English v.0.48:

Hubby \Hub"by\, a.
   Full of hubs or protuberances; as, a road that has been
   frozen while muddy is hubby. [U.S.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

hubby \hub"by\ (h[u^]b"b[y^]), n.
   Husband. [informal]
   [PJC]

WordNet (r) 3.0 (2006):

hubby
    n 1: a married man; a woman's partner in marriage [syn:
         husband, hubby, married man] [ant: married woman,
         wife]