yeartardedness
An affliction suffered by millions of people starting in January and lasting 2 to 3 weeks. Said afflicted unconciously write the dates on checks, forms, documents, etc. as the date from the previous year.
Bank Teller: "Sir, you wrote the date on your check as 1/3/2008. Its actually 1/3/2009."
Me: "Damn my yeartardedness!"
Me: "Damn my yeartardedness!"