oogaboogafool Share definition Flag when SOMEONE is acting like FOOL, usually when someone is so clueless that people would call them a primate from the stone age on how little common sense they have. friend 1: whats obamas last name?? friend 2: mane youre an OOGABOOGAFOOL oogaboogafool by lack pigmen November 20, 2020 Get the oogaboogafool mug.