piggish

adjective

1. resembling a pig, especially in being slovenly, greedy, or gluttonous: piggish table manners.
2. (of food portions) indecently large.
3. stubborn.

adjective

1. like a pig, esp in appetite or manners
2. informal, mainly British obstinate or mean

adj.1792, from pig (n.) + -ish. Until 20c. usually “stubborn, selfish; unclean, coarse;” association with greedy eating is more recent. Related: Piggishly; piggishness.