The act of thinking that something (i.e. essay, project, birth of a child) was due on a later day leading to last minute preparations, and half-assed work.
LISA WHY DIDN'T YOU TELL ME THE BABY WAS DUE TODAY WE NEED TO GO!!!!
Eddie - DAMN IT!
Aaron - Damnit? what happened?
Eddie - I HATE ACCIDENTAL PROCRASTINATION
Aaron - Me too
Eddie - I thought these essays were due Tuesday