Satire in Feng Jicai's "The Mao Button. "Buttons" in the story are a metaphor for penises.
"I've got a Mao Button like nothing you've ever seen before."
"Is it big?"
"Big! Well, it's bigger than that 'Triple Loyalty' button of his. But it's not just big-it's a real novelty. But let me see yours first."