NBA Girl Making A Slam Dunk

In professional WNBA play, a total of six dunks have been scored. Lisa Leslie of the Los Angeles Sparks was the first to score a dunk, on July 30, 2002 against the Miami Sol. Leslie also scored the second dunk in WNBA history on July 9, 2005. Other professional women's players who have scored dunks are Michelle Snow, Candace Parker (twice), and Sylvia Fowles.
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.