Haffy Share definition Flag A Designer Baseball Hat - One part Baseball Hat and another part Bandana or Sweatband, with the latter being interchangeable. "It's not a Fitted or Snapback... it's a Haffy." Haffy by HAFFY, LLC. November 17, 2018 0 0 Get merch Get the Haffy mug. Buy Now — $32.95 See more merch