Accidents that take place while a person is under the influence of a hefty amount of Xanax.
"Dude what the fuck happened to all my cash I had on me!"

"You bought 4 bars last night, then everyone of us got some del taco out'a you too!"

"Fuckin Xanaccident."
by Cheeva L September 9, 2008
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Mishaps, mistakes and errors caused my the intake of the prescription medication Xanax; which is often responsible for many accidents and conundrums.
Man #1: Oh my god, what happened to that half pizza I was saving in the fridge.

Man#2: I must have ate it last night by Xanaccident.
by JayBee123wesrgdfh April 14, 2010
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