Put it at the start of a short chat-reaction edit, right before the ignored message appears on screen, then follow it with Olha a Mensagem for a second nudge and Abriu o Áudio when the reply finally arrives. Open with WhatsApp Message Sound to set the chat scene first.
About this sound
This is a roughly two-second Portuguese voice clip saying 'Olha a mensagem', delivered in a loud, blown-out style that sounds like a phone speaker pushed too far. It feels pushy and funny, like someone demanding attention right now instead of waiting politely. It circulated as a WhatsApp audio, made for nudging a friend who has left a message unread.