This may not be an unfamiliar word to many of you, but it's a favorite of mine. A Didgeridoo is:
An Australian Aboriginal wind instrument in the form of a long wooden tube (traditionally made from a hollow branch)
When I first heard the name, I thought my parents were making it up (something my Dad was fond of doing). It actually is the name for an instrument that has been around for more than 2000 years, based on cave and rock paintings found in the Northern Territory of Australia.
Another interesting thing to note is that every tribe has their own name for this instrument. There are in fact 45 recognized names, though I'm sticking with Didgeridoo.
Here's a video of one being played, in case you're unfamiliar with it.
The word almost sounds like a silly cartoon or Dr. Seuss name. What comes to mind when you hear this word?