Humunga Dunga means: This is an excerpt from the Pokemon episode “The Pi-kahuna”. Commonly known under “Tengen Toppa Humunga Dunga”, Humunga Dunga is an annual wave and can only be surfed once in 20 years. Jan The Surfer and Victor The Surfer have both successfully surfed it. Humunga Dunga was made famous by a stream of Pokemon episodes on Thevidyaspy AKA Tuxedo Mask. (in Community Dictionary, added by Krystal Lester)