Japan is to suicide what America is to apple pie. Nowhere is the theme more prevalent, as the locals will check out for any reason: from bad relationships to poor grades. Ghost stories are no different, as the majority of urban legends involving spirits usually stem from the unhappy Casper jumping headlong into the path of an oncoming train or stringing himself up from the closest available chandelier.
The Teke-Teke is said to have been a woman who either jumped or fell in the path of an oncoming subway train and was severed in half. Seeing as being cut in half can sort of ruin your day, her anguish and anger gave rise to the Teke-Teke. Now, she roams throughout Japan in the form of a torso, dragging herself along with her claw-like hands. The sound she makes while moving is described as a "teke-teke-teke" sound as she propels herself using her elbows to frightening speeds (why is there no F1 circuit for this sort of thing?)
Assuming you haven't already left a trail of dust and piss in your wake, the Teke-Teke will launch herself toward you like the world's angriest sideshow attraction, produce a scythe, and cut your slow ass in half. Teke-Teke produce more Teke-Teke this way, as you are doomed to become one yourself if caught.
Told mostly as a cautionary tale to keep children from staying out past dusk, we suggest you listen to your overbearing mothers and not stay out too late.