Source : Webster's Revised Unabridged Dictionary (1913)

Dodo \Do"do\, n.; pl. {Dodoes}. [Said to be fr. Pg. doudo silly,
   foolish (cf. {Booby}); this is fr. Prov. E. dold, the same
   word as E. dolt.] (Zo["o]l.)
   A large, extinct bird ({Didus ineptus}), formerly inhabiting
   the Island of Mauritius. It had short, half-fledged wings,
   like those of the ostrich, and a short neck and legs; --
   called also {dronte}. It was related to the pigeons.

Source : WordNet®

dodo
     n 1: someone whose style is out of fashion [syn: {fogy}, {fogey},
           {fossil}]
     2: extinct heavy flightless bird of Mauritius related to
        pigeons [syn: {Raphus cucullatus}]
     [also: {dodoes} (pl)]