The in-bed mathematics that one performs in order to calculate how many hours or minutes they will be able to sleep for if they fall asleep immediately. Usually this is done in desperation after failing multiple attempts at falling asleep. The calculations usually begin while uncomfortably lying awake and trying to force yourself to sleep, you use the time you intend to sleep by and the time you have to get up, and all time in between is the Mathematress calculated sleep time.
*Guy looks over at the clock* "Shit it's already 3 and I have to be up at 8...well Mathematress says I'll only get 5 hours if I can get to sleep right now.....right now......damn!
An amazing person , she loves everyone and is absolutely hilarious. She is probably the life of the party and life would be horror without her. She is hot as hell and absolutely beautiful. She often denies that she is gorgeous but everyone around her knows its true. She is a great person and has a heart of gold. A Mahima will never betray you and she will always be by your side. A Mahima usually plays volleyball and is athletic. A Mahima is truly a gift from God she is an angel. Any guy who she wants a Mahima should be able to have. She is perfect and amazing.