Source : Webster's Revised Unabridged Dictionary (1913)

Gauche \Gauche\, n. [F.]
   1. Left handed; hence, awkward; clumsy.

   2. (Geom.) Winding; twisted; warped; -- applied to curves and
      surfaces.

Source : WordNet®

gauche
     adj : lacking social polish; "too gauche to leave the room when
           the conversation became intimate"; "their excellent
           manners always may be feel gauche" [syn: {graceless}, {unpolished}]