A major blackout in the northern United States and Canada that occured on August 14 which left millions of people without power and in the dark for over 20 hours
When you are so drunk and hate everyone at a party that the only option is to go home and drink alone. Essentially getting blackout, realizing other people suck, and then backing out of having to hang with them.
DBag 1: Dude where did Michelle go?
DBag2: I don't think she likes any of the options here, so she did a blackout backout.