The two groups were separated by an 'imaginary' line down the middle of the room.
an 'imaginary' world of dragons and unicorns
a child's 'imaginary' friend
(..) Tyler, I'm not kidding! Get away from the van! Goddamn it! OK. You are now firing a gun at your imaginary friend near gallons of nitroglycerin! Cool it, Tyler! Come on! Don't go! What?! (..)1999 Fight Club