a case of the reds 

Defined by Audrey Hepburn's character, Holly Golightly, in the movie "Breakfast at Tiffany's" as the opposite of "A case of the blues". Instead of becoming sad, "a case of the reds" infers that one is feeling overwhelmed or angry for no apparent reason.

When I heard that I would have to speak in front of a large audience, I suddenly got a case of the reds.

a case of the reds by volcomrockergrl January 14, 2008

Case of the Muesdays 

After a holiday on Monday, going back to work on Tuesday feels like a Monday. You will have a case of the Muesdays.

I have a case of the Muesdays. I need a nap. Or a muffin.

Case of the Muesdays by Wafsnipes23 May 27, 2014

got a case of the 

phrase used to compare newly apparent (or are thought to be developing) personal characteristic or behavior to a medical condition. derived from common names of diseases such as the measles, the shits (diarrhea), the bends

"Someone's got a case of the the Mondays"

"After watching too much Tv, the children got a case of the gimmes"

"Pot gave John a case of the stupids"

got a case of the by Marcel van Kraat September 11, 2006

Case of the Mondays

1. A fictitious disorder associated with the tiredness, irritability or distractedness that comes from returning to work after the weekend.

2. A phrase discribing idiots who use the beginning of the week as an excuse to be irritable and lazy when, in fact, everyone feels this way but would rather do their damn job instead of being annoying bitches.

Coworker #1: Man Terry sure is in a bad mood today.
Coworker #2: Yup, looks like he’s got a case of the mondays.
Coworker #1: Man! What a little bitch.

Case of the Mondays by Not__Mediocre_Definitions June 21, 2018

A Case of the Gremlins

When you wake up higher than you were before you passed out. Often happens from eating edibles after midnight.

I gave myself a case of the Gremlins by eating a pot brownie when I got home from the bar.

A Case of the Gremlins by Robelodeon September 20, 2016

Bad case of the Kharjos

When someone or something gets stuck in a planking position facing up or down, and proceeds to move around and go about their business whilst stuck on the ground. Primarily found in Skyrim, and was discovered by and named after Kharjo the Khajiit, right-hand man, or rather, right-hand cat of Lord Scatsbury Himself.

Friend 1: *is moving around on the ground*
Friend 2: "Dang dude, you got a bad case of the Kharjos"
Scats: "YOU'RE ALL FAKE, AND BROKEN!"

Bad case of the Kharjos by Micher J December 26, 2019

case of the pants 

When one wants to get into another persons pants

"What happened to you and Steve? You two were so cute!"
"He had a case of the pants. I had to dump him"

case of the pants by Alumni September 25, 2005