The story
Imitative. Reportedly first used in the Looney Tunes short Bushy Hare, in which Bugs Bunny yells "unga, bunga, bunga!" at a stereotypical depiction of an Aboriginal Australian. Compare bunga bunga.
Etymology from Wiktionary, CC BY-SA 4.0.
unga bunga
Today it means: A playstyle that relies on brute strength or extreme aggro in combat. Full definition →