[Meaning they who are] unpleasant, disgusting. "The dragon came forward from the inner sanctum and licked the blood off them and cleansed the wounds, so that they would never be looked on as defiled from the filth."[1]
And Aristophanes [writes]:[2]
-- O defiled one, and rascal, and shameless, you, and defiled and totally defiled and most defiled, how did you come up here, o most defiled of the defiled. What on earth is your name, will you not say?
-- Most defiled.
-- What sort are you by birth? Tell me.
-- Most defiled.
[one exchange is omitted here]
-- There is no way you will escape death if you don't reveal your name to me, whatever it might be, most defiled.
-- Trygaios of [the deme] Athmonon, a skilled vine-worker, not an informer or a lover of trouble-making.
-- And for what have you come?
-- To bring you this meat.
-- O wretchedly Kronos' son [...].[3]
-- O stingy one [do you see] how I no longer seem most defiled to you?