Check this shit out. Just when you thought you'd seen it all... Turns out the word "Kamehameha" does not only refer to a explosive ball of energy being expelled from the hands of Goku from Dragon Ball Zetto, but also to some Hawaiian King who is awesome enough to have earned a holiday. This guy was so badass he was known as the "Napolean of the Pacific" (by a few of his neighbors).

I don't know if he was actually able to do the "Kamehameha" like everyone says, but you should all take a moment every June 11th to harness the power of your ki and get worked into a frenzy until you make some explosive white... uh... light shoot from between your hands.

http://en.wikipedia.org/wiki/Kamehameha_Day