Jeffy is the diaper-wearing puppet character from the SML YouTube series, known for his loud tantrums and childlike logic, and his hatred of green beans became one of his most quoted running jokes. Clips of him refusing the vegetable circulated widely in meme compilations and short-form edits, where his exaggerated delivery made the moment easy to reuse out of context. It remains popular because the refusal is simple, loud, and instantly recognisable to viewers who know the character.