Monkey Boo Share definition Flag Monkey boo is a bucket head. He likes to spin around and spin and spin and scream. He likes to punch ppl with his toes. Jackson: monkey boo is a buttocksLogan: NO WAY Monkey Boo by BiscuitToesOwO April 19, 2022 0 0 Get merch Get the Monkey Boo mug. Buy Now — $32.95 See more merch