It means Cantonese.

The source of this stalk:

The match between the magician and Fan Yun in the dressing room.

Hey, man, I think you're at the wrong door. The leather club is just two blocks away.

Magic Man (Bei Orlandi): I heard that you are from Guangdong, so we are fellow villagers. (The wrong door is from Guangdong, and the villagers are a few blocks down.)

Van Duckholm: Thank you.

Fan Yun (Fan? Duckholm): FA♂Q！

The usage of this stalk:

Cantonese people mainly speak Cantonese and speak Mandarin. Cantonese sounds like Cantonese.