Source : Webster's Revised Unabridged Dictionary (1913)

Macho \Ma"cho\, n. [Sp.] (Zo["o]l.)
   The striped mullet of California ({Mugil cephalus, or
   Mexicanus}).

Source : WordNet®

macho
     adj : used of men; markedly masculine in appearance or manner
           [syn: {butch}]