Top definition
(noun) - When someone makes a comment regarding a post on Facebook or tweet that you completely forget about.
Jody: So did you end up all wet this weekend?
Chuck: Excuse me?
Jody: Yeah you facebooked it was raining at your cabin.
Chuck: Ohh riggghhhhttt... Sorry, Post-Amnesia
by ITALUS September 12, 2011
Get the mug
Get a Post-Amnesia mug for your girlfriend Jovana.