slam dunk

noun

1

: dunk shot

2

: sure thing

the case is a slam dunk

slam-dunk

ˈslam-ˈdəŋk 

verb

Synonyms of slam dunk

• lock
• sure thing
• lead-pipe cinch
• certainty

Examples of slam dunk in a Sentence

The vote proved to be a slam dunk for our side with a 24 to 5 win.

There's no doubt that he's guilty. The case is a slam dunk.

Recent Examples on the Web

Going off at 1-2, Gallant Fox had been thought a dead-sure slam dunk. — Guy Martin, Forbes.com, 1 Aug. 2026

In addition to an overtime 3-pointer, Wheeler’s performance was also highlighted by a running slam dunk in the fourth. — Jason Beede, The Orlando Sentinel, 13 July 2026

Latin America, Australia/NZ, France, Germany and the UK are the slam dunks for Moana. — Anthony D'alessandro, Deadline, 7 July 2026

This is a slam dunk win for the Kings and a massive loss for the Wild. — Shayna Goldman, New York Times, 1 July 2026

Word History

First Known Use

1969, in the meaning defined at sense 1

Rhymes for slam dunk

• debunk
• bunk
• chunk
• clunk
• drunk
• hunk
• junk
• punk
• shrunk
• slunk
• spunk
• sunk

Kids Definition

slam dunk

noun

: dunk shot

slam-dunk

ˈslam-ˈdəŋk

verb