The act of seating yourself in front of a desk piled with physics material, and receiving pleasure from a student beneath. Oral sex often involves uniform circular motion and Newtonian mechanics. There is often a trap door beneath that allows quick entry and exit.
Why is there banging beneath that desk!? Oh, someone must be pulling a TuckerFucker... now, back to my pendulum measurements!
A person that loves to hate Facebook, but continues using it. Also, a person using Facebook and doesn't understand how a social media platform like Facebook has warped the world.