IPA: /ˈspɔɪlər/
KK: /ˈspɔɪlər/
A piece of information that reveals a surprise or important detail, often about a story or movie, which can spoil the enjoyment for others who haven't seen it yet.
I accidentally read a spoiler about the movie's ending before I had a chance to watch it.
Spoiler → The word originates from the Old French *espoiler*, meaning to plunder or strip away. It refers to the act of revealing or taking away the surprise or enjoyment of a story or event.
Think of someone 'stripping away' the surprise or enjoyment of a story — that's why a spoiler reveals key details.