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1 definition by Kitface

 
1.
The act of shaking a carbonated alcoholic beverage and and allowing the liquid to shoot up through the neck of the bottle and into the persons anus. This allows the alcohol enter into the bloodstream faster than oral intake.
"My friend died because of careless butthole surfing."
"You should really stop drinking, butthole surfing is the way to go."
by Kitface May 04, 2007