The phrase o coração chegou a bater is a common Portuguese expression for a heart that started pounding from nerves, attraction or surprise, which explains why the clip circulates as a reaction sound rather than a song or effect. Short voice lines like this spread through meme edits and messaging apps because they can be dropped onto almost any tense moment. Portuguese speaking creators reuse it for romantic comedy scenes, football near misses and suspense reveals, keeping the same short line as a recognisable cue for a racing emotional reaction online today.