If it's what I'm thinking, it's not so much a "call out" as a "fourth wall breaking joke", where a character says something about sexual freaks drooling all over a furry character and then everyone looks at the camera.
deservedly so, there's enough Loona shit out there that I very regularly see people complain about there being too much of it. I think there's more stuff of her than of any other single character relative to the age of the source media.