Source : Webster's Revised Unabridged Dictionary (1913)

Buttony \But"ton*y\, a.
   Ornamented with a large number of buttons. ``The buttony
   boy.'' --Thackeray. ``My coat so blue and buttony.'' --W. S.
   Gilbert.

Source : WordNet®

buttony
     adj 1: small and round and shiny like a shiny bead or button;
            "bright beady eyes"; "black buttony eyes" [syn: {beady},
             {beadlike}, {buttonlike}]
     2: ornamented with many buttons