Top Definition
when you use your mind to pull something outta ur ass and you present it in sucha way that it makes complete sense
I had an art history paper to write and i haven't even been to class. wrote it in an hour and got an A. thats brain swag.

I didnt have any idea how to do this thesis, used my brain swag and i busted out the illest one. Teacher used it as a class example.
by AFERR November 29, 2010
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