WordNet sense 1 (a coarse obnoxious person):

slob, sloven, slovenly person

WordNet sense 2 (a person regarded as greedy and pig-like):

hog

WordNet sense 3 (uncomplimentary terms for a policeman):

bull, cop, copper, fuzz

WordNet sense 4 (mold consisting of a bed of sand in which pig iron is cast):

pig bed

WordNet sense 5 (live like a pig, in squalor):

pig it

WordNet sense 6 (domestic swine):

squealer, grunter, Sus scrofa

WordNet sense 7 (eat greedily):

devour, raven, guttle, raven

WordNet sense 8 (give birth):

farrow