B. After having a brown out, no guys would touch insert name of some girl anymore, fearing she might get drunk and crap all over.
C. Dude I browned out and woke up with more than just a bad hangover.
When you smoke so much tobacco that you throw up a pure brown mucus product.
Last night I was so drunk I chain smoked a whole pack of cigarettes, now this morning I'm paying for it with a nice brown out.
The plain meaning is that the Brown (faeces) came out of the body.
When a brownout occurs the unfortunate victim usually suffers embarrassment, shame and has the need to head home.