I came across this word on this site. I posted one sci-fi question and many people started to downvote my question and called it a spoiler.
What does "spoiler" mean, and why is it causing people to downvote questions?
Spoiler is a piece of information that gives away (spoils) important plots and/or information that would be of interest to someone who has not read/watched the book/film, but would like to.
For example - Jesus dies but is resurrected, or that the Big Bad Wolf eats Little Red Riding Hood, but the huntsman saves her in the end...