1) The seventh track on Michael Jackon's Bad album. A "fantasy" song that is, what Thriller is to Thriller, to Bad. Thriller took you to zombie land. Smooth Criminal reminds you Sunday was a black day and has you wondering whether Annie is okay now.
2) One of the most amazingly choreographed music videos ever by the King of Pop, Michael Jackson.
The act of pulling out before ejaculation and jamming your thumb in a girls butthole, then when she turns around in shock ejaculating on her face, then running away. The technique gets its name from the fact that the female usually makes a noise similar to Michael Jackson in the popular song of the same name.
When a drunk guy is peeing while standing up and leans from side to side as far as possible like Michael Jackson in the Smooth Criminal video, just to see how far he can go without falling over or losing control and pissing on everything.
Sorry about the wallpaper in your bathroom... I should've known I was too drunk to pull a smooth criminal... but at least I didn't puke!