The very unattractive hair that lingers on the back of the neck in many men and sometimes women. It occurs often when the person has not gotten a haircut in a while.
Guy 1: Duuude look at the back of your neck!
Guy 2: What? There’s nothing there...
Guy 1: You’ve got some serious Guerilla warhair going on. You should get that shaved off.
Guy 2: Fuck, that’s why im such a pussy anti-magnet.
Guy 1: Yeah, you sick fuck