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2 definitions by alt875

 
1.
Counting how much money you have, and subtract it from what you started with to figure out how much you drank the night before.
I started the night with $100, beers were $5, and I woke up with $50. Using beerithmatic, I know that I drank 10 beers last night.
by alt875 December 22, 2012
 
2.
Either a giant dildo, or a koozie for a dildo.
Your dildo is getting too cold? Here, take my dildoozie.
by alt875 December 22, 2012