In the excellent book “The insults of the ancient Greeks” by Marios Veretta, reference is made about the way the ancient Greeks used to insult one another. It is known that the ancient Greeks were often vulgar.
Here are some of words that the ancient Greeks used when they wanted to humiliate someone:
avrovatis / αβροβάτης: a feminine man, with female gait
gynaikopipis / γυναικοπίπης: voyeur, one who ogles women
eschara / εσχάρα: female genital area, labia
eupigos / εύπυγος: a woman with nice buttocks
kassoris / κασσωρίς: a prostitute
posthon / ποσθών: a man with a big penis
myzouris / μύζουρις: a woman who sucks penis
ekfylos / έκφυλος: dishonoured
kovalos / κόβαλος: parasite
koprios / κόπρειος: worthless