When everything is going wrong in your life all at once; a time when everything is rapidly changing for the worst or strangely burdensome.
My wife is cheating on me with my sister, I locked my keys in my car, and my boss called to fire me. Why is today such a shitzkrieg?
a term used to describe something that deteriorates quickly. a portmanteau of the words "shit" and "Blitzkrieg" (lightning war), a word used to describe the armoured offensives that took place in the early stages of the Second World War.
"despite starting off well, Game of Thrones went downhill, becoming a bit of a shitzkrieg in its 8th season.