Top Definition
A condition of temporary memory loss, during which a person can’t recall having sex with the person he/she is speaking to.

Ken: Hey, sexy! What’s your name?
Barbie: It’s Barbie, you dickhead. You boned me for 13 hours last Memorial Day.
Ken: Oh, yeah? Right! I remember you now.
by psychobabble June 02, 2006
n: Loss of a large block of interrelated memories; complete or partial loss of memory caused by drinking too much the night before.
Sometimes but not all, slamnesia is faked to avoid coming to terms with an embarassing action whilst previously intoxicated.
Susie was being a total slut last night but she claimed she had slamnesia so she could act like it didn't happen.
by shawtyz dalyte May 10, 2007

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