The Tuesday following a holiday Monday. Feels like Monday, but is actually a Tuesday. Can totally fuck your week up and cause you to miss meetings and piss off your friends.
I missed an appointment today because my subconscious was convinced it was Monday, when it was actually Muesday.
Muesday: define #2
A Tuesday that feels like a Monday, typically after a Monday holiday, such that you overlook events scheduled for Tuesday.
Dang, sorry I missed the review, thought it was Monday being Muesday and all.