Apes is a magazine about apes.
While arguing, Homer called Marge "Bridezilla" and Marge called him "King Wrong". Maggie, watching their argue, imagined Marge as Godzilla and Homer as King Homer. The both then battled. Godzilla spitted fire at King Homer and left. King Homer then started drinking beer and read a magazine Apes, turning back to Homer who actually read a magazine People.