Plain and simple, these nicknames are not used by anyone or any organization other than Lily.
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Background
Tribal names are often bestowed upon certain individuals and their habits and achievements. While this may be restricted to Tribal based individuals, the huntress Lily was responsible for creating The Nickname Project, where certain individuals from throughout the Wastelands are dubbed certain nicknames and titles.
Most of the individuals are unaware of the nicknames given to them (In most cases, to keep herself from trouble).
Major Individuals
Viktor: The Red Elder, The Bird Tamer, Wounded King
Devil: Smells-of-Death, The Pale One, Deal Maker, The Bad Man
Armorjerk: Green Leader, Lord of the Many
Krogg: Gecko Son, Scaled-Man, The Chameleon Man
Mouse: Protector of Dusk
Tepes Directs-The-Swarm, Foul Bringer
Minor Individuals
Kabatic: Eats-With-Strangers, Chaos-and-Morals
Rastus: Distracted One, Curious-of-Stones, One-Amongst-Many
Oura:
Brennan: That Yellow Bastard
Manco: The Silent One, Speaks-No-More, Writes-Alot
Jonster: Fanged Man, Strange Eyes
Trujillo: The Demon, Harbringer of Sorrows, Walking Death
Landmarks
Dark Coast: Sea of Tears, Haunted Ocean
Ranger Center: Hive of the Many, Barred-Hope
Ground Zero: The Isolated Place, The Cold Land, The Ghost Home
Warrior Silo: The Forbidden Bomb, The Vile Place, Destruction Ground
Darwin: The Dead Zone, Forsaken Land