Noun
greenskin (plural greenskins)
(fantasy, fiction, role-playing games) One of several distinct green-skinned creatures often grouped together, such as orcs, goblins and (sometimes) trolls.
General Ross developed an obsession with capturing the Hulk, leading him to establish a variously named New Mexico base dedicated to that mission — Project Greenskin Base, Hulkbuster Base, Gamma Base. Source: Internet