Boghost

(pronounced bO/ gOst)
The strange and mysterious energies that cause overhead projector screens to suddenly and inexplicably roll back up with a loud banging noise.

Believed to be formed by residual energy left over from Xtreme lessons about Trooper Joe or centripedal force.

::overhead projector screen snaps up::
Student: "Oh NOES!!! It's the Boghost)

by Connect the Dots November 4, 2006