It's a white flag, not to beconfused with a white fag.
Waving this flag (not fag) in the air during a battle is a sign of surrendering, basically it means your screwed.
So please download this and make your units screwed for the pleasure of all.
Oh and please credit.
Keywords:
white, flag, surrender, buff, cloth, wood, pole, dancing, wave, wind, screwed, phail