A family friendly yet gut wrenching insult. It can be used in various different ways when you aren’t in the position to cuss someone out. The word is simple yet has an incredibly symbolic meaning.
The Poss head is a manikin head (often used for wigs) that is possessed by an evil entity. The Poss head's purpose is to posses people and be the new host of their body. This entity is a nothing but a myth as it hasn’t been proved to actually exist. The word “Poss” is short for possession and “head” because it’s a manikin head.
Momma! I saw the Poss head in your room last night! It’s eyes were glowing red!
A unit head is a position at summer camps reserved for weirdos. Unit Heads are mostly losers, who only ever talk about the job. They will never not talk about the job, and leave all their friends behind. Once a unit head, you become no fun, a suck up, and brainwashed. Unit heads like the kids more than their friends
diego: hey man, you coming to the party later?
martin: nah i’m hanging with the other unit heads!
diego: you’re such a loser