Mondayitis

[Justin Bieber]

[Call it what you want], but [Mondayitis] is a feeling of weariness, sadness, apathy and general distress that many individuals feel when starting the [Monday morning] work week. This feeling is usually enhanced after a large weekend.

[Tina]

Reluctance to attend school or work, or a reduction in working efficiency, experienced on a Monday morning.

[Rihanna]

the way people feel after the weekend when they do not want to go to work or school: