1 definition by Mister Wisdom

The burning sensation caused by acidic fecal matter. Most prevalent to those who suffer from lactose intolerance.
Example 1:
"Where is Brandon?"
"He's still on the toilet screaming because the shamrock shake gave him serious ass daggers."

Example 2:
"Coach, I can't climb the rope because my Ass Dagger might sever the line"
by Mister Wisdom February 26, 2014
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