Originated from Danish, but the internet being the internet changed the meaning. (Originally this meant to be even cited or happy), to now be slang for something entirely else, often being the polar opposite of happy.
Original use:
Tom: Hey Tim are you in a big mood today!?
Tim *excited*: Yes Tom, I am!!
Current Internet use:
Tim: I’m dead inside man
Tom: Big Mood
Tom: Hey Tim are you in a big mood today!?
Tim *excited*: Yes Tom, I am!!
Current Internet use:
Tim: I’m dead inside man
Tom: Big Mood
by hedgelinghog July 14, 2018

Snow showers that are more atmospheric than intrusive
by deftone207 December 21, 2018

The act of souring the moment with a potential sexual partner by opening your mouth or just existing in general. Leading statisticians suggestion this may be incurable.
If you’re on a date and wondering if your ruining the mood? Ask yourself, are you there? There’s your answer bro.
by Life according to Beau April 25, 2021

When, for whatever reason, you're so angry that you only want to yell and listen to metal and the like.
by Durbanpoison November 2, 2011

Similar to a funny mood. A sense of over excitement, rowdiness and giddiness. Usually unable to be described in more common lexicon.
"Watermelondria, I'm in a 'Bunny mood' again!"
by Lulu Lusk February 9, 2010

by thevibe.com June 26, 2021

The palindromic feeling of satisfaction in the eye of a looming danger or big event which can lead to both destruction and constructive creativity.
Have you seen Peter today?
- He's working in the garage and might come out with a new car or a pile of trash. He's in Doom Mood.
- He's working in the garage and might come out with a new car or a pile of trash. He's in Doom Mood.
by tmkdoom February 17, 2022
