These are cartoon depictions of The Beatles. Ringo has a huge shitball because he metamorphosed into a real beetle.
Lennon: “Ringo, what is this?”
McCartney: “This is absuuurd!”
George: “I’m George.”
Ringo: “Do you have a problem with my big sh*t ball?"
McCartney: "Yes, on account that its a big sh*t ball."