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Mastering Engineering 

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!
Mastering Engineering by kypok April 16, 2012
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Mastering Engineering 

The number one cause for depression and suicide in engineering students. This program is so incompetent Satan wouldn't even use it to punish the damned because he wouldn't have the patience to input the 30 letter and number sequence to open the account. See also Mastering Chemistry, Mastering Physics, Mastering literally insert anything here. They're all equally crap.
"My professor assigned us Mastering Engineering this semester."
"That's rough buddy *ties you a noose*"

Mastering Engineering 

A program that allows students to do assignments online. It is designed to make the life of engineering students suck more than it already does.
Student A: Hey did you do mastering engineering?
Student B: Yeah, here's my answer.
Student A: Hey it won't accept the same answer!
Student B: Our numbers are different! DAMMIT!!
Student C: Try taking a ratio of your numbers and her answer...
*ponder for a while*
Student B: Okay plug that in...
Student A: Time ran out! ARGH!!
Mastering Engineering by HaruhiSuzuki November 30, 2010
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trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
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British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
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Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
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