"Poster" dunks, or slam dunks over a contesting defender, are some of the most electric sequences in basketball. Watch the most explosive "poster" dunks in recent March Madness history. #marchmadness #dunks #posterdunk #collegebasketball #highlights Watch highlights, game recaps and much more from the NCAA Division I men’s and women’s basketball tournaments on the official NCAA March Madness YouTube channel. Subscribe now to be updated on the latest videos: youtube.com/marchmadness