Top Definition
It's when somebody runs into the bathroom and has to shit really bad. They don't even get their pants all the way down and blast shit all over the place. The sheer horror and disbelief of a brown massacre is enough to make a grown man break into tears.
If your house is full of drunk people, or if you just had a big bean burrito, get ready for a brown massacre from hell.
by rockstarchris June 01, 2007
5 Words related to brown massacre

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