A playful slang term for a penis, particularly one that is often awkwardly or humorously referenced. Named after the clumsy character from the Japanese animated series, it suggests a lighthearted approach to discussing male anatomy, especially in embarrassing or funny situations.
When he saw a YouTube video where a model tried on women's underwear, everyone couldn’t help but notice his runny Shin Chan that stains his underwear!
by Emotional Cruiser July 13, 2025