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

One of the more popular myths accepted as fact is that the WNBA has bricked the breakaway slam dunk that is Caitlin Clark phenomenon. — Fort Worth Star-Telegram, 21 Aug. 2026

The New York Knicks hold the NBA record for most times that a player has won the slam dunk contest while wearing the Knickerbocker uniform. — Tom Rende, Forbes.com, 7 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

Word History

First Known Use

1968, 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