dejamnesia

The phenomenon by which an individual becomes aware that this is not the first time they have forgotten the same piece of key information.

Arsenio Billingham: Dude, what is that's chick's name again, the one with the really fat head?
Gary Kasparov: Man, you asked me that last month.
Arsenio Billingham: Whoaa, I just got the biggest dejamnesia

by arsenio billingham June 4, 2010