shack wacky
adj.— «By mid-winter, we’ve got more than just a mild case of seasonal affective disorder nipping at our heels. Some say it’s the length of the deep freeze and the intense social isolation that drives many of us mad. We even have a name for it: “shack wacky.”» —“Baby, it’s cold outside” by Patricia Robertson Globe and Mail (Toronto, Canada) Feb. 17, 2007. (source: Double-Tongued Dictionary)