An expression or saying that is in response to something that embodies a foolish or nonsensical statement or remark.
Rogue: Laker's decade has already passed, I'm afraid you will root for the spurs when they are playing with our boys in blue in WCF, wishing the spurs to revenge your team by beating our boys in blue who would have already beaten the Fakers in the first round.
Kobe: And then you woke up.
Said at the end of an outrageous, unbelievable story, to imply that the teller is full of corn.
Him: "I asked Kate Moss out for a date, and she said yes"!!
Her: "And then you woke up".
This hella nasty dude said he wanted to go out with me. I said back "And then you woke up."