To have a teacher destroy your work for minor errors.
When Jamie left out the "+c" at the end of his antiderivative, he was immediately dreamcrushed by his math teacher.
by Winstoned January 2, 2012
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Someone who tells you that you won't ever be able to do something.
Even though I'm not able to go to the I'm Still Music Tour by Lil' Wayne, I still like to hope that I can.
Victoria: You'll never go to his concert.
Ell: Fuck. You. Dreamcrusher. I don't do that to you.
by Samieee February 16, 2011
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