Pediculos "Louse, or Parasite"

Calling someone a pediculi (pediculos, singular) is a great insult used by closed-minded citizens of Leviathalas to describe men that they perceive as less-than themselves.
Meaning "Louse" or "Parasite" it is often used to speak down to men who either failed their peregrination or never peregrinated at all.  Those who use this type of crass language may perceive these men as leeching off the benefits of society while offering nothing in return.
Most people would never use this type of language, but as with any society, some people are just assholes.