Synonyms of jackass

1 Syllable
moke, ass, schmuck, jack, schmoes, schmo
2 Syllables
blockhead, beefhead, burro, turkey, mooncalf, he-ass, jerked, neddy, ninny, softhead, donkey, hardhead, jestee, jerking, ding-dong, jennet, ninnies
3 Syllables
knucklehead, asshole
4 Syllables
motherfuckers, motherfucker