Só que não is a well-known Brazilian Portuguese expression meaning, in context, just kidding or not really, and it has become a staple punchline in Brazilian online humour. As a short audio clip, it circulates in memes, reaction videos and WhatsApp-style voice messages, where one line is enough to flip a statement into a joke. Its popularity comes from that instant recognition: listeners do not need an explanation to understand that the previous claim was false. Because the phrase works in almost any everyday situation, from sports banter to everyday boasts, it remains a reliable comic shortcut.