A disorder caused by someone who has had their eyes stuck so long on screen while playing Video Games that when they command their player to look in a direction the actually turn their own head and then feel completely ashamed.
Dude I was playin' Halo for so long that when I looked left I actually turned left. I felt really dumb.

Ah, A little case of HeadTurning syndrome huh?
by FU A11 February 25, 2010