1. Common disease among many, mostly seen in students and employees, which refers to the feeling of not wanting to exist on a Monday morning.

Mainly caused by pulling all-nighters gaming or watching football, and often accompanied by symptoms such as sleeplessness, depression, and the feeling of impending doom.
Max: So sleepy that i almost overdosed on coffee. Mondays suck.
Lucas: Relatable. Monday Blues man, Monday Blues.
by ALAMNAM October 19, 2021
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When one has the Monday blues, it means they are tired and stressed to be back at work (or just be back to Monday in general). Everyone has a shared "ugh" state of being.
Do not ask me how I am. It is Monday. You KNOW I have the Monday blues.

I had a rough weekend and now I have the Monday blues. This SUCKS!
by LingDanc803 February 27, 2023
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There is none in your Sunday clothes.
... for there's no Blue Monday in your Sunday clothes!
by kubik2233 March 23, 2017
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Blue Monday, Blue Day is a badass song sang by the rock group Foreigner....
You really should rethink your girl, all she does is make you have a Blue Monday, everyday a Blue Day!!
by DevilWoman.inthenextroom January 25, 2021
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