spoilsport

[ spoil-spawrt, -spohrt ]

noun

1. a person whose selfish or unsportsmanlike attitudes or actions spoil the pleasure of others, as in a game or social gathering.

spoilsport

/ ˈspɔɪlˌspɔːt /

noun

1. informal.
   a person who spoils the pleasure of other people by his actions or attitudes

Word History and Origins

Origin of spoilsport¹

First recorded in 1815–25; from phrase spoil the sport

Example Sentences

For days, northern California newspapers kicked around fierce, spoilsport claims.

From Seattle Times

Never mind the spoilsport who defines college as “those magical seven years between high school and your first warehouse job.”

From Washington Post

But rising interest rates and fears of a recession may play spoilsport in an industry where most vehicle purchases are financed with loans, analysts say.

From Reuters

When the “Yes” option pulled ahead, I found myself becoming the worst kind of online spoilsport: while people on Twitter sick of him celebrated that he was no doubt pouting at discovering how unpopular he plainly is, I started pedantically pointing out that there is actually no humiliating this guy who owns the company doing the “polling” and who has strategically framed the poll such that the “yes” option could describe what he’d already announced he was doing anyway.

From Slate

Red hot inflation has also played spoilsport for consumer finance companies as surging costs dampen purchasing power and force Americans, especially those in the lower income bracket, to tighten their purse strings.

From Reuters