Toodle-oo!

This caterpillar has nothing to do with toodle-oo or my trip.
This caterpillar has nothing to do with toodle-oo or my trip.

I'm off to Asia. Taiwan and South Korea. Why those two places you may wonder? Because I got a free flight and room and board from a sexy scientist.

And now the origin of toodle-oo as per The Phrase Finder.