Peanut butter and fluff sandwich Share definition Flag The act of shoving shit and cum inbetween a girls boobs After some hardcore dry anal, my boyfriend made me a peanut butter and fluff sandwich. Peanut butter and fluff sandwich by John Appleseedy October 16, 2013 0 0 Get merch Get the Peanut butter and fluff sandwich mug. Buy Now — $32.95 See more merch