After a blackout night, the attempt of recalling the events of the night before through friends, facebook pictures, and angry girlfriends. Usually initiated by the phrase "What the **** happened last night?"
"Man, what the **** happened last night?"

"Didn't you see the pictures? You were macking on two chicks while dancing on a table... but then the table broke and we had to take you to a hospital."

"Oh, that explains why my girlfriend is angry with me and I have stitches in my head... how many did I get?"

"23"

"Oh"

"Yeah, collective memory is a bitch"
by TheRealLance April 15, 2010
Get the collective memory mug.