The phrase sua amiga eu vou pegar translates roughly as your friend, I am going to get her, and its popularity online comes from that direct, teasing delivery rather than a single confirmed source. Clips built around lines like this circulate heavily in Brazilian WhatsApp groups and short video edits, where a short vocal boast can be reused in many different situations. Because the meaning is clear even out of context, creators keep returning to it for flirting jokes, friendly rivalry and exaggerated confidence, especially in reaction style posts shared among friends.