To be morbid and miserable.

Feeling sorry for yourself. Walking around with a face like thunder.
Look at that miserable cow, she’s a right Debbie Downer!

Stop being such a Debbie, Gemma!
by Litnerd December 25, 2019
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A Facebooker who uses Facebook as a media to convey sad, woeful, and depressing stausi for no reason, bringing the morale of all that see plummeting to the ground.
Did you see Amber's statuses today?

Yeah, it was ungodly depressing again.

Fo Sho, she's a debbie downer.
by Jack Merridew-er June 6, 2011
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The person who, in which a state of high, decides to down on a chill-group discussion.
-Dood, this is so relaxing.
-Ya, this is mad chill.
-We need to do this more often.
-I can't believe my girlfriend banged another guy.
-YO! Why you such a Debbie Downer
-_-
by TheFLASHeca March 14, 2009
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A girl who always brings up something negative about herself,co worker,life or in the news. Everything that comes out of her mouth is negative.
Did sandy have to talk about her divorce at lunch time? She is such a debbie downer!
by Celica February 5, 2008
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"Shaun was looking for his phone but it was in his hand"
"What a fucking debbie downer"
by debbie_jr July 3, 2023
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A person who constantly makes negative comments or has negative thoughts named “Debbie,” “Deb,” or “Deborah,” with physical features resembling those of one with Down syndrome (such as shortened posture, wide set eyes, enlarged tongue, short hair cut) hence the word “downer.”
The students were so excited to throw their teacher a baby shower until Debbie Downer arrived and rolled her eyes.
by Debbiedowner176 March 28, 2022
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A stun gun or a taser capable of dropping one to the ground instantly.
She pulled out her Debbie Downer and dropped his ass with 12000 volts of electric current.
by Black History Month November 16, 2020
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