Place it at the end of a chat-mistake sequence, after the WhatsApp message sound has set up the incoming text, then follow the reaction with Olha a Mensagem for a second person noticing the error before you cut away.
Sobre este som
This is an almost nine-second Portuguese voice clip of a gravelly Batman-style voice swearing in panic about a message sent to the wrong person. It feels frantic, embarrassed and angrily funny, like the instant after you realise a private text landed in the wrong chat.