Best dunk fails fat guy slam dunk fail HD in basketball match. nba gifs. The 2000 dunk contest is widely regarded as among the best contests in NBA history. b ball. From Tony Dumas to Chris Andersen, take a look back at some of the most cringeworthy efforts in Slam Dunk Contest history. failarmy. 97. 360 windmill dunk. posterized. espn.