When you let feces dry in your asscrack, it leaves behind asscookies.
by Josh Pimpington November 17, 2007
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An English spin on German slang (Arschkeks)

1. Someone or something that is a pain in the ass.
"Dude! Why you gotta be such a damn asscookie!?!"
by Katy H. M. August 24, 2008
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