If you guessed “A giant sentient piece of fried chicken with huge boobs that the Colonel wants to fuck,” you were correct.
RocketNews24 has the cartoon backstory:
[There’s a] male hunk of meat [who]is Momofu (roughly “thigh guy”), while she’s Muneko (“breast girl”). Apparently, they are a newly married couple. He proposed to her with a manly hone-don (a play on the kabe-don meme using the word “hone” or “bone”) and she keeps things hot and heavy with her sweet sayings and poses.
Gotta love proposals made with manly bones.