The sound comes from 99 Vidas, a Brazilian podcast hosted by Jurandir Filho, where 'Relaxa' closes the show's opening as his signature catchphrase. Fans picked it up as a shorthand for staying calm, sharing the short clip in gaming discussions, reaction videos, and social posts whenever a conversation got too heated. Because it is brief, instantly recognisable to listeners, and works without needing the full episode context, it has remained a handy reaction sound for creators who want a quick, good-natured reset.