The Big Aristotle Christmas Tree Ornament?!?
Shaquille O'Neal now has another potential nickname to add to his ever-growing list ... after Kenny Smith plowed him into a giant Christmas tree on the set of "NBA on TNT" on Tuesday night.
The scene was hilarious ... O'Neal was racing The Jet to the show's big board -- when Smith got a little too physical with the Hall of Famer.
Kenny got up underneath the 7-foot-1 Lakers legend .