The Hawaii thing was proof he was high? No. I wasn't even sure if it was a deliberate vulgar joke or one of those embarrassing ad-libs presenters accidentally make. It wasn't even as funny as the real thing: http://www.youtube.com/watch?v=vMk8KKWAq7c ...That phrase was originally used to refer to a moist quim.
But you're wrong about the origin of the phrase. It originally meant exactly what it sounds like but has since acquired the rude connotation because that's how humans roll.