When you go drinking and the next morning or sometimes later that nights you realize that pieces of the night are missing from your memory. To fluctuate between remembering and being blackout drunk.
GUY 1: What'd you do last night
GUY 2: Well I remember playing drinking games at the house, I don't know how but I somehow eneded up at a club. The next thing I remember was being in a cab with two hot girls who didn't speak english. I must of fucked up though because I woke up on the doorstep to the house.
GUY 1: Fucking Brownouts always screw you over in the end.