Believe it or not, I actually saw The Adventures of Buckaroo Banzai in the movie theater, and tried to re-watch it recently (it doesn't hold up well, unfortunately. LOL! But I loved it when I saw it in the movie theater.)

That quote by the way isn't really from Buckaroo, it predates the movie - it's an Australian quote. My Dad was constantly quoting it when he was living in Australia.