Cyn Hater Share definition Flag People who seriously need hobbies due to the fact that they decide to flame Cyn and her friends because of their own foolishness. These douchebags are real Cyn Haters. Cyn Hater by Pov :D June 18, 2004 0 0 Get merch Get the Cyn Hater mug. Buy Now — $32.95 See more merch