Top definition
Mineral Deposit: A bowel movement taken in the Geology building bathroom on the way to another class.

guy 1: "Dude I dont think I can make it home to take a shit in between class!"

Guy 2: Its cool man, just leave a mineral deposit in the Geology building
by snipsnip182 April 28, 2009
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2
When one deficates in the geology department's bathroom on campus.
Guy1: Oh man! I have to shit bad!

Guy2: So go take a shit??

Guy1: Yea I will, I just hope I can make it to the geology building. I'm going to leave them a mineral deposit!
by Burminator May 02, 2009
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