pig·gy I. \ˈpigē, -gi\noun (-es) Etymology:pig (I) + -y, diminutive suffix : a little pig II. adjective (-er/-est) Etymology:pig (I) + -y, adjective suffix 1.: having qualities felt to resemble those attributed to a pig < plump, with round piggy cheeks — L.K.Liang > 2.of a sow: appearing to be in pig