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Also known as PSD.

It is the sadness felt after reading or watching a really long series or story. The bitter feeling when you know the journey is over, but you don't want it to end.

It is the longing for the words on the pages to move for you like they did the first time you read them. When you didn't know what the next paragraph held and the world in which the characters found themselves was entirely without limit. Because any time you re-read the story, you know that they aren't free to roam anywhere like they were before. They are stuck in a cart on a track and all you can hope for is to notice something about the scene you didn't before, and to just try to relive those feelings you had the first time around.

But it will never be quite the same.

This can apply to any series; be it a book series, TV series, an anime, comic, or even movie. The effects can also be felt after completing a stand alone piece that is not necessarily part of a series, although this isn't as common as PSD derives from the attachment one has to the story's characters.

Effects include, but are not limited to:
• A state depression or sadness
• The inability to start another story
• The need to rewatch/reread
• Excessively projecting felt love towards the internet
• Creating fan fiction
> Man, I'm so sad.
- What's up?
> I just finished watching Avatar: The Last Airbender. I feel like I lost a group of imaginary friends. :(
- Yeah, sounds like you've got post-series depression. I felt the same after Harry Potter. It'll pass in a few days. . .
by prettyCoolGuy July 04, 2012
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What is it when after you finish a series, there is a sad cloud hanging over your head for several days, weeks, months, years? Post-series depression, or PSD, for short.

This is a real thing. It occurs when you have finished a series of books, movies, or a TV show. When the story ends, and you want it to keep going but it just doesn't.
No matter how hard you try, the story won't be the same.

How do you know if you have it?

Symptoms include:
- Being in a state of depression or sadness after finishing a series.
- Telling everyone to never(or definitely) read it because your life will be ruined
- Not being able to read another book
- Obsessively, rereading or rewatching over and over
- Writing or reading fanfictions about it.
- Frantically searching the Internet about it.
Sally: What's been up with Alyssa lately?
Joe: Post series depression. She just finished the Harry Potter series.
Sally: Yeah, she's been crying non-stop, hasn't left her house.
by wewereliars August 08, 2015
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When you finish a good story/tv show were you've gotten really attached to the characters and it also took a long time to read or watch, so now you have this void in your chest. And it feels like you just made a bunch of friends then out of no where you realized that they are gone, and you're never going to see them again. It's definitely got to be top 5 most painful feelings.
I've got Post-series depression, because I feel empty after reading this book.
by TheRealFaz January 22, 2019
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The feeling you get after finishing the final book of a series or finishing the last episode of a certain show.

Symptoms may include:

• Need to re-watch or re-read
• Over fangirling/fanboying
• Excessively projecting felt love towards series via internet
• Wanting of a new installment that will surely never come
Boy: I think I have Post-series depression after watching the final episode of American Horror Story!

Girl: I felt the same way after reading the final chapter of the last Harry Potter book.
by ladygingermanboything December 26, 2011
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The immense sadness felt when someone comes to the end of a series especially a long one. This can cause lowkey depression and an overall bitter mood.
After finishing the last season I have serious post-series depression.
by nini4989 May 17, 2021
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