boston blackout 

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.

boston blackout by kevinbutter April 23, 2008

Boston Backout 

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!

Boston Backout by Rob Schindler September 3, 2007