When you are boning a bitch and your buddy comes out of the closet and socks her in the face rendering her unconscious. You and your buddy then proceed to fuck her and take pictures to show her in the morning.
Me and Joey gave her the 'ol Boston Blackout. It was a great bonding experience ad she was out cold all night.
by kevinbutter April 23, 2008
Get the boston blackout mug.the act of almost shitting ones pants while trying to make it to a toilet while the person you are traveling with is taking their sweet ass time.
Man! If he would have talked to that clerk two more seconds I would have had a Boston Backout in my drawers!
by Rob Schindler September 3, 2007
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