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a very large vagina
have you seen my penis, i think i left it in your fat box
by bartlett theater ;) January 26, 2011
The term a person refers to when they check their email with an insane amount of new emails in their inbox.
"I logged on to Yahoo today to find myself a fatbox. It took me 2 hours to get rid of all that crap."
by fishboyultra May 23, 2008