A guy you mess around with when you hang out with him for no apparent reasion. You do this even though you know better, it happens almost everytime you hang out. This is how someone becomes a Mansteris. These can be good things or bad things. Mansteris(s) can become very negitive people in your life and an object your friends will use to make fun of. You and your mansteris(s) activities usually take place in random places when you don't think your friends are looking.
(1)Hey Rebecca, there goes your mansteris, boR.
(2)Omg! she made out with her mansteris in the woods at his party!?
(2)Omg! she made out with her mansteris in the woods at his party!?
by [Letsgo4awalk] September 30, 2006
Get the Mansteris mug.Literally cancer. Homework website used by colleges to make students google every question on chegg or yahoo answers because clicking anything will take of 50%. Giving college students cancer since 1998.
by AweStrucK July 24, 2015
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Mansteris
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A website created to make the lives of American college students a nightmare through the use of nazi-like grading on significant figures and rounding throughout 15+ pages of hell. Commonly referred to as a bitch for changing 1 number in each person's given values to piss people off.
"Hey have you done the Mastering Chemistry for this week yet?"
"No but I heard it's a real killer."
"Yeah I tried the hints and couldn't even work through those!"
"No but I heard it's a real killer."
"Yeah I tried the hints and couldn't even work through those!"
by CHE108 May 15, 2012
Get the Mastering Chemistry mug.An online homework program designed to rob college students of their hard-earned money and serve as a crutch for professors too lazy to write their own homework assignments or to teach. Its purpose, beyond making millions for the publishing company, is apparently to reduce the number of engineering graduates in the United States by utterly demoralizing and destroying their confidence in an effort to force them to drop the program and/or kill themselves.
I used up all but one attempt on this stupid Mastering Engineering problem, before I realized it had switched everything to kiloOhms instead of Ohms! And then I still got it wrong! FML!
by kypok April 16, 2012
Get the Mastering Engineering mug.by GAM Brian September 9, 2016
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Get the mansterooni mug.by Nastaran January 19, 2006
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