when karma finally comes back around to kick you in the ass and it devastates you beyond belief, this is called a karma tornado. KARMA tornadoes come only to those who deserve them;
The karma tornado finally came down and the feng shui in wendysoffice couldnt stop the force from kicking her out on her ass.
The portuguese tornado is when someone has a abnormally largetongue and performs counter clockwise rotations causing the labia to become rather arroused. The reason why its called ´the portuguese tornado´is that many portuguese men used this method to greet foreign females hoping for the ultimate goal of penetration later that night.
Jessica was nearly sent into a coma while Tiago welcomed her to the country with a portuguese tornado and because of the powerful tornado later that night he managed to insert Jessica.
AFK or Away From Keyboard is simply a popular shortening among gamers, However on the also popular IRC Chat. <Zanthis(ALE)> originally started the AFK Tornado craze when he originally set his status as this due to an actual Tornado in 2005. I believe the original quote is posted on Bash.org.
I hope this little background history was helpful, for those Newfags out there its a very "you had to be there moment" type situation.