1. noun, The wing or foil at the rear of a car providing downforce, often made with form rather than function in mind, to adorn the rear of the cars driven around your town centre by mouth-breathers who think they're in The Fast & the Furious.

2. noun, A piece of information likely to ruin dramatic tension in any piece of entertainment if discovered too early. Usually any plot development revealed more than a third of the way through the story. She's a man, he's a ghost, it's his sledge, he's a clone, etc.

3. verb, To ruin any piece of entertainment by revealing such information.

4. verb, To protect others from entertainment being ruined by obscuring such information from them.
1. Look at that mean spoiler on his Honda, it goes well with the over-sized exhaust pipe.

2. I would tell you who Kaizer Soze is, but it's a massive spoiler.

3. Please don't spoiler Bioshock Infinite for me, I can't play it until after my exams.

4. I wish you'd spoilered that Breaking Bad post, I'm only on season two.
by adkm1979 March 27, 2013
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when you are in a good mood and someone who with there very presence enters a room or talks to you and takes your entire good mood away.
sh!t, here comes spoiler...
you damn spoiler. That bra is such a spoiler!!!
by sidmoman October 21, 2008
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Spoilers are experts from the real boom or story, that you may not know of yet. This is to tell you that if you have not read the book or story but plan to, but don't want to ruin it, to not read that fanfiction. The parts of the novel you may not know yet are written in the text. See fanfiction for more information on those.
"Hey Sarah, this now HP fic has spoilers in it for the new book. Should I read it?"

"Not if you want the boom to be a surprise, Judy".
by Jennvellcs November 2, 2007
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When a book, movie or whatever could easily be ruined by spoilers then it is very spoilerable.
Do not read anything about that Korean movie "Oldboy". It is very spoilerable.
by FriendofAlice August 6, 2017
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Basically means the dogs bollocks! it pretty much can't be beaten!
Yo Dave that Gammon you cooked for dinner was an absolute spoiler!

That girl I rinsed out last night was a right spoiler!!!
by Iceman0001 June 21, 2010
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in boxing: one who makes the other opponent look bad but not make himself look good too.
The boxing match was a real fuck-you-instantly fistfest, and we had an Annie Lennox wouldbe who was nothin' but a spoiler. damn!
by hytham_hammer July 6, 2005
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An aerodynamic device used on tractor-trailer trucks. A spoiler is located on the roof of the tractor which deflects air from buffeting the trailer. Truck roof spoilers increase the top speed of the truck, save diesel fuel, and protect the refrigerator coils of refrigerated trailers from rocks that blow off of dump trucks.
The top speed of this Kenworth is 117 miles per hour, the same truck without the Spoiler only goes 113 MPH. By the end of the day I'm 64 miles ahead, because I have a Spoiler.
by AviationMetalSmith January 18, 2007
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