Puff Share definition Flag A blanket filled with down feathers. It is extremely warm and especially good for the winter. Coleman had never heard of a puff until he went to college but now he wishes that he had a gorgeous, warm, thick, feathery blanket to adorn his bed. Puff by Coleman Your Wrong December 28, 2005 0 0 Get merch Get the Puff mug. Buy Now — $32.95 See more merch