A memory that may or may not have happened, therefore questioning its existence.
Usually experienced during a hangover, but can merely be a memory you can't seem to place your finger on.
To recall a maymory is to remaymber.
Girl: I have a weird maymory from that party last night . . .
Guy: What is it?
Girl: I think I gave you a blowjob . . .
"I remaymber locking the front door when we came in . . . You stay in bed. I'll go double-check."