Source : Webster's Revised Unabridged Dictionary (1913)

Piggish \Pig"gish\, a.
   Relating to, or like, a pig; greedy.

Source : WordNet®

piggish
     adj : resembling swine; coarsely gluttonous or greedy; "piggish
           table manners"; "the piggy fat-cheeked little boy and
           his porcine pot-bellied father"; "swinish slavering
           over food" [syn: {hoggish}, {piggy}, {porcine}, {swinish}]