Bunz Share definition Flag When somebody uses "X is so bunz bro", they are saying they have a very, very large ass. Freddy: "This song is so bunz bro 💔" Jake: "Are you sure your ass isn't massive as fuck?" Bunz by Maw62 February 9, 2025 0 0 Get merch Get the Bunz mug. Buy Now — $32.95 See more merch