The phrase pega o pato is Portuguese for catch the duck, and the quein quein part works as an onomatopoeic duck call that listeners recognise even without a translation. Online it circulates as a short, repeatable soundboard clip rather than as a line tied to a single well-known scene, which makes it easy to drop into jokes, reaction edits and playful taunts. Its appeal comes from that simplicity: the instruction is clear, the duck noise is instantly silly, and the combination can turn an ordinary miss or escape into a light-hearted gag.