Então tá is a common everyday phrase in Brazil, so its popularity as a sound does not come from a single movie or show. Short clips of the expression spread through WhatsApp groups, meme pages and short video edits, where the wording alone carries the joke. Because Brazilians use it in real conversation to close a topic or accept something reluctantly, online audiences understand the tone immediately. That familiarity has kept it in circulation as a compact reaction audio for chats, stickers with sound and comedic timing.