1. Something you have hidden up your ass. Most of the time when your hiding it from authority. After you keestered something, whats in your ass is your ass stash
Example: Prisoner #1-You still got that ass stash?

Prisoner #2-Yeah, I keestered that shit. We got some weed for later.
by keestermaster February 09, 2010

4 Words Related to ass stash

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