Derived from the Warhammer and Warhammer 40,000 universes, Humie is often used by the Orks to refer to
Humans, (Imperial Guard or Space Marines). It is not necessarily in a derogatory tone but being orks, it usually is.
This may also be employed by ork fans in other fantasy or sci-fi games where Orks / Orcs are a playable race along with
Humans, such as World of Warcraft, (though officially in the lore,
WoW Orcs do not really talk like that).