Top Definition
Someone who sits on a couch for far too long is fermenting, and should generally be beaten to a pulp and stuffed into a bottle with brewers yeast for two weeks. This creates an incredibly potent and mind numbing alcohol... Goes great with twice baked potatoes.
dude, Wesley, you just watched an entire effing season of LOST in one're fermenting!
by ChristinaWHILES July 27, 2010

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