In the 2014 film “The Other Woman”, there is an exchange between several characters
Phil: Who's this?
Carmela: I'm Carmela, Kate's decorator.
Phil: Oh. Really? When did you fire Joel?
Kate: Joel? No, I didn't. No, he's, um... She's doing all of the stuff in the... on the feng shui in the house. Remember? Um, we met in Hong Kong... I told you...
Carmela: Yeah, we bonded over dim sum and spatial reasoning.
Phil: Two of my favorite things.
Carmela: That's so smart and funny. That's really witty.
Kate: Ha-ha. That's funny. So, um, this is my brother. Remember? - And he's a contractor.
- Oh, a contractor. Oh.
He's gonna go look at the office while you go...Phil: Unless you want to stay... I mean, you could help me check things out.
Carmela: I would love to, actually, but it's kind of a tricky project. And I don't want to complicate things, so... But it was really nice meeting you, so...
Phil: Yeah, you, too. I hope I see you again soon.
Kate: Carmela? Really? Did you and Tony have fun living in Hong Kong? Or did Big Pussy and Meadow miss you too much?
Carmela: You know what? You're gonna thank me for using a fake name. You don't want Phil mentioning to Mark about your new friend Carly, do you? No, you don't, so you are welcome.
What did Kate mean?
Please note: English is not my native language, so the simpler and clearer you can make your explanation, the better