The line comes from a compilation titled 'As melhores frases da turma do Chaves', a roundup of memorable quotes from the Brazilian Portuguese dub of El Chavo del Ocho, the long-running Mexican sitcom created by Roberto Gómez Bolaños that aired through the 1970s. Chaves remains a staple of Brazilian television and internet humor, and its dubbed catchphrases keep resurfacing in meme pages, short videos and reaction audios. Short excerpts like this one circulate on soundboards because the odd literal image of riding a mule makes an instant punchline for jokes about borrowing someone else's ride.