spoilerer 

A person who clearly doesn't know the english language

"hey whats a spoilerer?"

"A person who is dumb af"

spoilerer by Bullyboncs March 28, 2015

spoilerphobia 

(n.) fear of coming across a spoiler. can be preceded with specific kind of spoilerphobia.

I can't turn on the TV or go on the internet before I read the last Harry Potter book. I have Potter Spoilerphobia.

spoilerphobia by bayne4 August 3, 2007

Spoiler Alert 

1. When talking about a movie to an audience that has not yet seen the movie, this phrase is used by a speaker to warn that they are about to reveal plot details that may be surprising or unexpected. The thought is that revealing certain plot details will detract from the natural viewing experience, so the warning serves as an opportunity for people to stop listening/reading.

1a. The same idea, but in the context of other media such as books, television shows, etc.

2. Often this phrase is used jokingly following, or immediately proceeding information that is felt to be obvious.

1) Spoiler alert! We're about to discuss the ending of the Empire Strikes Back, so stop reading now if you haven't seen it yet.

2) "I loved Titanic, the best part was the special effects during the ship sinking... oh sorry, spoiler alert."

Spoiler Alert by Waveofreactions June 9, 2018

Spoiler

When someone reveals a previously unknown aspect of something which you likely would have rather learned on your own.

*discussions of art media such as video games, movies, etc. especially vulnerable.

"The following review contains spoilers!"

Spoiler by Pheon1xBorn January 29, 2005

spoiler alert 

Usu. a term to describe when crucial elements of a movie are about to be revealed (i.e. the ending, character deaths, a twist, etc.)

**Spoiler Alert!**

The girl in million dollar baby dies.

spoiler alert by INDIExCORE October 28, 2005

spoiler whore 

A girl (typically a crazed fangirl) who cannot get enough of her particular brand of show crack (ie merlin,grey's anatomy, etc) And spends most of her waking hours(or tries to at least), despite the fact that she has a REAL life and has things to do; looking for any possible info regarding said show. Specifically on forums where she can get her daily dose of spoilage.

Typically spoiler whores are people (girls) who can never get enough info and when we do we are forever speculating and eventually end up writing or reading fanfic to get our satisfaction. :)

-Hey Brooke, do you know the epic frepicness you are in store for on this episode of Merlin?
-No, I just know from the promo at the end of the show.
-Giiiiirrrlllll, let me tell you(commences to tell)
-How did you find all that stuff out?!?
-(sigh) Im such a spoiler whore...i just HAFTA know whats gunna happen!!!

spoiler whore by Marimbanator October 8, 2010

Anti-spoiler 

The reveal of previously unknown aspects of a story, except what is "revealed" is misinformation.

Anti-spoilers are a form of anti-joke.

You: "Where are you in the series? Has Hermione been killed yet?"
Friend "Wft dude! I didn't know she dies."
Much later, friend discovers that Hermione actually lives.

. . .
Another example...

"Tyler made me think that the whole story took place inside of a dream, but apparently it was an anti-spoiler. Bastard!"

. . .

Pepper enough anti-spoilers into conversations and you'll no longer be at risk of accidentally spoiling something, because no one will know if they should take you seriously.

Anti-spoiler by Spiral Stardust April 26, 2019