What the fuck is cameo and why this shit from papaD say by Q for jeff?

As like his one or two things from this.

Yes i imagine someone puts whatever name in to shout out someone else but i mean really? Out of the two people. Plus he wishes"jeff" a happy bday and says hope "you guys" have a great one

Is this a nothing or should i take 5 more spergilins and explain how i make this work mathematically