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1.
Is a basketball slang term used to describe a player who plays the 4 or 5 position ( Power Forward - Center )who dunks with power and force. A player with a NBA Power Forward or Center chizzled body.
Amare and Shaq are 2 of the best Dunkadelic Heavyweights in the NBA. Ben Wallace has the best Dunkadelic Heavyweight body in the league.
by Derrick E. Vaughan March 31, 2005
 
2.
Is a basketball slang " catch phrase " for a matchup of 2 marquee players who are going to go at one another in a head to head duel.
Bill Russell and Wilt Chamberlain was a battle of 2 Dunkadelic Heavyweights that may be considered the biggest one on one rivalry of All-Time in the NBA. The 1988 All-Star Slam Dunk contest was a Dunkadelic Heavyweight showdown between Dominique Wilkens and Michael Jordan. Now that's Dunkadelic!!!!!
by Derrick E. Vaughan April 05, 2005