Boa tarde grupo is Portuguese for good afternoon, group, a phrase commonly used to open messages in Brazilian and Portuguese group chats on WhatsApp and other messaging apps. As a sound, it circulates as a short greeting clip that creators reuse for comedy, introductions, and reactions, rather than as a line from a known film, show, or song. Its appeal comes from its everyday familiarity: almost anyone who belongs to a busy group chat recognises the ritual of a daily afternoon greeting. That shared experience keeps the clip relatable and easy to drop into short-form videos.