muff pirate Share definition Flag The act of shaving the muff whilst a woman is asleep. Thus, literally pirating the muff. I pirate so much muff I have a pubic hair stash. I am the ultimate muff pirate! Brooklyn! muff pirate by Frank Stallion August 24, 2008 0 0 Get merch Get the muff pirate mug. Buy Now — $32.95 See more merch