look up any word, like cunt:
 
1.
The act of obsessively calculating your grade in a class. Frequently done after tests. It is highly masturbatory in nature.
Patrick: "I think I failed that last chem test. Well, I guess it's time to do some calcubation. Do you want to join in?"

Timothy: "Nah, I stopped doing that years ago."
by pfflian314 October 08, 2011