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A "Baumer day" includes staying home instead of going to school for a list of various reasons. Including but not limited to: Late hockey game, lost a hockey game, too much work to do, had to work the night before, or even just wanted to take a day off.
Griffen: hey guys have you seen Chris?
Kevin: Nah i think hes taking a Baumer day
by I Like Baseball ! January 19, 2011
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