NBA Girl Making A Slam Dunk

Use as a phrase
The phrase "slam dunk" is often used outside of basketball to refer colloquially to something that has a certain outcome or guaranteed success (a "sure thing"). For example, "Don't worry, it's a slam-dunk" as George J. Tenet said to President George W. Bush regarding the case for the existence of Weapons of Mass Destruction in Iraq. The phrase is one of many sports idioms.