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1 definition by Rynomite13

1. Monday Dumbday
The day after Sunday Funday, when you are hungover at work and feel dumb for drinking so much the day before.
I can't believe I drank that much again. I hate Monday Dumbday.
hangover sunday funday drink drank drunk
by Rynomite13 Aug 16, 2010 add a video
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