Definitions by BlackBackInBoy

blacked back in 

the moment in time when you are out so late that you "wake up" from being blackout drunk. often you will be confused about your surroundings and unaware what occurred in the last few hours.

"i blacked back in at 3am on the subway, and i had no idea what happened to my cake!"

blacked back in by BlackBackInBoy August 22, 2011