The phrase is everyday Brazilian Portuguese for liar, you are deceiving us, often expanded online as ta enganando a rapaziada, meaning the speaker is fooling the whole group. Its original recording and speaker are not widely credited, so the clip circulates mainly as a detached reaction sound shared between Portuguese speaking communities. Short voice memes like this spread because the emotion is clear from tone alone. It remains popular for edits, group chats and live streams where a quick accusation is funnier than a written reply or a longer explanation from anyone watching.