Troongaboonga Share definition Flag A small creature that hides in your toilet, troongaboongas can be very happy, or mad, or sad. all troongaboongas have different emotions. "Whoa! There's a happy troongaboonga swimming in my toilet! Mum can I keep it?" Troongaboonga by SpudsTheEniglishMan August 4, 2021 Get the Troongaboonga mug.