Chapter 36: The Phantom World (6)
Orcs are the fighting race who take this term too literally.
Anything other than fighting is meaningless for them, so much so that they don't even have names and instead call themselves in numbers, which correspond to their status in their respective camps.
For instance, Second Of Lilria Camp is the second strongest orc in his home, and to become First, he obviously has to defeat or kill the strongest orc in his camp—The First Of Lilria Camp.
"There were numerous camps back when I was conquering the different world…" Benjamin tried to craft his words well so as to avoid any misunderstanding and spare Estelle from any confusion. "While each camp has its own leader who might have different rules for battles, hunts, etc, every camp is subservient to The Orc Camp, where the strongest orc, Zero, has all reign and power. They're numerous orc races, and so far, we've seen gray orcs, so I assume we're in their lands."