SPOILER

spoiler

(noun) a hinged airfoil on the upper surface of an aircraft wing that is raised to reduce lift and increase drag

spoiler

(noun) an airfoil mounted on the rear of a car to reduce lift at high speeds

pamperer, spoiler, coddler, mollycoddler

(noun) someone who pampers or spoils by excessive indulgence

plunderer, pillager, looter, spoiler, despoiler, raider, freebooter

(noun) someone who takes spoils or plunder (as in war)

spoiler

(noun) a candidate with no chance of winning but who may draw enough votes to prevent one of the leading candidates from winning

Source: WordNet® 3.1

Etymology

Noun

spoiler (plural spoilers)

One who spoils; a plunderer; a pillager; a robber; a despoiler.

One who corrupts, mars, or renders useless.

A document, review or comment that discloses the ending or some key surprise or twist in a story, or the internal rules controlling the behaviour of a video game, etc.

(aeronautics) A device to reduce lift.

(automobiles) A device to reduce lift and increase downforce

(US, chiefly politics, sports) An individual (or organisation etc.), unable to win themselves, who spoils the chances of another's victory.

Verb

spoiler (third-person singular simple present spoilers, present participle spoilering, simple past and past participle spoilered)

(transitive, fandom slang) To mark (a document or message) with a spoiler warning, to prevent readers from accidentally learning details they would prefer not to know.

(transitive, fandom slang) To tell (a person) details of how a story ends etc.