PQP eu acredito comes from Brazilian Portuguese internet slang, where pqp is a common profanity used for shock or frustration and eu acredito simply means I believe. The phrase spread in football and gaming circles as a half serious, half ironic chant for moments when a team, player or friend is losing badly. Online it works less as a literal statement of faith and more as comic denial, which is why it appears in reaction edits, live chat spam and short meme clips shared among Portuguese speakers.