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• slam dunk
  slam dunk

  noun

  a particularly forceful, often dramatic dunk shot.
• slam-dunk
  slam-dunk

  verb (used with object)

  to dunk (the ball) with great force.

slam dunk

¹ American  

noun

• slam dunks
  plural

1. Basketball. a particularly forceful, often dramatic dunk shot.

2. Slang. something regarded as certain to occur or be accomplished, typically something desirable that requires little further effort.

   The election is starting to look like a slam dunk for our side.

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slam-dunk ² American  

[slam-duhngk] / ˈslæmˌdʌŋk /

verb (used with object)

1. Basketball. to dunk (the ball) with great force.

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slam dunk British  

noun

1. basketball a scoring shot in which a player jumps up and forces the ball down through the basket

2. informal a task so easy that success in it is deemed a certainty

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verb

1. basketball to jump up and force (a ball) through a basket

slam dunk Idioms  

1. A forceful, dramatic move, as in That indictment was a slam dunk if ever there was one. This expression is also often put as a verb, slam-dunk, meaning “make a forceful move against someone,” as in This is a great chance for us to slam-dunk the opposition. The idiom comes from basketball, where it refers to a dramatic shot in which the ball is thrust into the basket from above the rim. It was transferred to other activities from about 1980 on.

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Other Word Forms

Derived Forms

• slam dunker
  noun

Inflected Forms

Nouns

• slam dunks
  plural

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Etymology

Origin of slam dunk

First recorded in 1975–80

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Example Sentences

See Examples For:

slam dunk slam-dunk

The states’ lawsuit offers coherent concerns about the deal’s impact on the film and cable TV marketplaces, but it doesn’t look like a slam dunk, according to antitrust experts.

From The Wall Street Journal ● Jul. 14, 2026

Former SNP minister Kate Forbes has claimed that she was viewed as a "slam dunk" for the party leadership until she revealed her views on gay marriage.

From BBC ● Jul. 2, 2026

Two games into this series it looks to us, the members of the jury, as though Redick has taken this allegedly open-and-shut case, this slam dunk of a trial — and thrown down a reverse.

From Los Angeles Times ● Apr. 24, 2026

Forget the politics: When it comes to personal finance, that advice is a slam dunk.

From MarketWatch ● Apr. 12, 2026

Maybe you can bring a basketball with you on your first mission and make the first slam dunk in space.”

From "Sir Fig Newton and the Science of Persistence" by Sonja Thomas

We’re still baking with I-don’t-know berries, because the market’s earnings yield is by no means a slam-dunk predictor of future returns.

From Barron's ● May 14, 2026

Trades that would be slam-dunk criminal cases if they were mapped onto the stock market are, in prediction markets, either a little bit fishy or the mark of a savvy trader.

From Slate ● Apr. 24, 2026

But I could see his interlocutor was completely ignoring him as he'd thought of his own killer point and couldn't wait to slam-dunk it.

From BBC ● Mar. 7, 2026

“We only looked at violators that were slam-dunk cases,” Lange said.

From The Wall Street Journal ● Dec. 28, 2025

I grabbed her at her waist, lifted her so she could slam-dunk the eight-foot rim.

From "Burning Blue" by Paul Griffin

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