an ill-mannered person

clod

a bad-tempered, low-bred dog

rotten, lowly animate being

of louse

bad person

a kind of small insect living on the bodies of people and animals; a bad person deserving severe criticism

bad person

a rough, ill-mannered man

boor

a dishonest person; (playfully) a naughty child

person who is unprincipled, does not work hard