The original speaker, recording date, and source of Oi Felix are not documented. The clip is best understood as a short, personalized Portuguese greeting that circulates as shareable audio. Sounds built around a person’s name commonly spread through private messages, group chats, short videos, and joke edits because they feel immediately directed at the recipient. This recording remains useful whenever a creator wants to address Felix without recording a new greeting, or turn a simple hello into a recognizable recurring joke among friends.