Oct 7, 2016 me Grug. Grug neanderthal. Grug only hear song from Ubonga and Dooka. Grug think Ubonga and Dooka best rock hitters of all time. Grug love when Ubonga do the beat making and Grug do the vocal grunts. greatest duo of all time. Grug really hope dinosaur no eat them or else Grug ears cant hearing Ubonga and Dooka grunts and rock hitting