Maybe New England Patriots tight end Rob Gronkowski hasn't heard what's going on with Richie Incognito -- because he openly mocked an Asian fan over the weekend, calling the guy "Leslie Chow" ... and joking about fried rice.
Gronk was hosting a Q&A with fans in Foxborough, MA Sunday night at Bar Louie Restaurant when people started dancing ... including an Asian man sporting a Gronk jersey.
The Pats star acted surprised, and said -- into a microphone for everyone to hear -- "They told me he could only cook fried rice!" Then Gronk one upped himself by calling the fan "Leslie Chow" ... Ken Jeong's character from "The Hangover."
At least one person in the group thought Gronk might have crossed a line -- because they immediately grabbed the mic and reminded the audience they all signed waivers agreeing to hand over ALL cell phone footage.
It's unclear if that was just a joke, but clearly this video survived -- and now we gotta ask ...