Top Definition
A grumpy person, or a state of grumpiness that comes over a normal person; causing the afflicted person to make snappy rude remarks and become very unsocial.
Ryan won't go to the movies because he's a grumpatron, and nobody likes his company anyways.
#grumpus #bitter #pissed #asshole #grouch #party pooper
by Xumill January 21, 2010
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