To have a case of the Mondays is to be in an abhorrent mood due to the beginning of the new work week.
It is globally observable, although it is the most prevalent among those attending school, or working a 9 to 5 job.
Freelancers and entrepreneurs are mostly immune to the “case of the Mondays”.
The expression appeared in the 1999 film, Office Space in which Peter Gibbons (portrayed by Ron Livingston) is attempting to convince coworkers into leaving the office, before he “loses it”.
After hearing this conversation, a female coworker comments “Uh oh. It looks like somebody’s got a case of the Mondays”.
The first case of the phrase appearing on Usenet dates back to 2000.
It was first defined on Urban Dictionary in 2004.
A “Case of Mondays” turned into an iconic expression, most people can identify with.
It may often be encountered on Reddit and Usenet, not to mention the posters and ecards that are revolving around the trope.
- Dictionary.com – Case of the Mondays
- NBC News – Sorry, there’s no such thing as a case of the Mondays