(slang) N/abstract - When you secretly video yourself with a cellphone while sticking the handle of a screwdriver up your ass, and save it to your phone. Then forget about the video and let a friend borrow it, who then finds the video and plasters it all over the internet. That's a Wyboo Boo Boo.
I hope I never have a Wyboo Boo Boo. I don't think my heart or my asshole could take it.