Boomerang Stool Share definition Flag The stool that appears to be flushed down the toilet but then comes back up. - You didn't flush the toilet man wtf ? - It was a boomerang stool dude! Boomerang Stool by rand() % person July 23, 2018 0 0 Get merch Get the Boomerang Stool mug. Buy Now — $32.95 See more merch