LeBron had the exclamation point with a minute left in GM3 when he rejected a dunk attempt by Evan Turner and then told Turner all about it. If you watch the NBA's upload of the play (above) you will notice that they removed much of the trash talking after the block but you can hear Webber talking about it: You know Mutombo is a hall of famer but i'm blocking shots too.
If you watch the clip below from NBAShowtime, then you can watch the post block trash talking in all it's entirety.
Despite getting his shot blocked near the end of the game, Turner had a pretty good overall one in the loss. He scored a team-high 19 points to go with team-highs of 8 rebounds and 8 assists. LeBron led all scorers with a game-high 31 and had the dunk of the game when he threw down a monster windmill.