Source : Webster's Revised Unabridged Dictionary (1913)

Toby \To"by\, n.; pl. {-bies}. [Perh. from the proper name.]
   A small jug, pitcher, or mug, generally used for ale, shaped
   somewhat like a stout man, with a cocked hat forming the
   brim.

Source : WordNet®

toby
     n : a drinking mug in the shape of a stout man wearing a
         three-cornered hat [syn: {toby jug}, {toby fillpot jug}]