What is Mondayitis?
1.
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.
Boss: "good morning, looking a little worse for wear whats wrong?"
Worker: "Got a case of Mondayitis"
See
2.
when you feel tired and grouchy on a monday because you have had a rough weekend usually with little or no sleep
darn this mondayitis i feel so tired
See