LeBron James just wasn't in the mood on Tuesday ... shutting down a heckler with 7 simple words -- "Your lady embarrassed to be with you!"
Bron and the Lakers were in Chicago playing the Bulls at the United Center when someone in the stands began running their mouth about LeBron and Anthony Davis.
At first, LeBron tried to ignore the guy ... but then, Bron just shot back at the dude, grabbed his towel and moved on. Pretty hilarious!
But the hecklers, as a group, weren't fazed -- one guy continued to scream at Anthony Davis .