N. The yearly anniversary of when you were canned (a.k.a. let go, downsized, considered redundant).
Alternate use: canniversary
I've decided to throw a Cannediversary Party to celebrate the day I was tossed out of that corporate Hellhole. All the ladies will wear pink slips, we'll serve canned foods, downsized items like mini weenies, have a bonfired and end it by letting some firedworks go off.