An excessively large amount of something.
I have an ass-mountain of homework due tomorrow.

Dude, you're definitely pulling an all-nighter.
by Iamabstract October 31, 2010
1 more definition
5 Words related to assmountain
Top Definition
an email attatchment
"I sent you the lab as an assmountain"

"Hey, Bob, did you get that assmountain of the TPS reports?"

by Nbaum April 09, 2007

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