The event of forgetting your own password, which becomes an awful event when you don't have any means of recovering it.
Bill: Darn--what did I set as the password for that Word presentation? I . . . I . . . I forgot!
Seth: Bill, what's wrong?
Bill: Password amnesia. It happens to the best of us.
The frustrating state of mind when you walk into another room and can't remember why you are there.
After walking from the kitchen to the bedroom, you say to yourself:
"Now why am I looking in this closet again?", then "Positional amnesia strikes me once again!"
Saying you don’t remember if something happened as an excuse to appear innocent.
Trump said he doesn’t remember having a meeting talking about Putin, he must have Russian Amnesia.
The act of forgetting a lesson that you have learned on several occasions but you never seem to remember.
Deciding that you are going to start working out at night only to remember after several failed attempts that you never actually get to exercise due to the many distractions. Damn that lesson amnesia.
When you can’t remember what happened in the porn movie you watched last night.
Man I’ve got porn amnesia.
I can’t remember if she had big tits or a dick.
Forgetting all of the questions on a test right after you've taken it. Can be seriously annoying to test crammers hoping to get a preview for the questions/subjects covered on the exam.
Guy 1: "Hey man, what was on the math test today? I'm taking it next hour."
Guy 2: "I dunno, I'm suffering from some serious test amnesia..."
Guy 1: "C'mon, not even one question?"
Guy 2: "Nah man my brain is numb... I think I just need a blunt and a nap."
Guy 1: "Dude, that's finals for you."
The act in which someone farts and then proceeds to forget they farted.
"Dude what is the terrible smell, did you fart?"
"Nah dude that wasn't me, you must have fart amnesia."