Little is known about who first recorded this Dutch line, so its life is mostly online as a short reaction clip rather than a known scene or song. The appeal is the pairing itself, a warm supermooi for approval and a breezy doei for goodbye, compressed into under two seconds. That makes it easy to reuse in messages, edits and soundboards where a friendly exit is needed. It keeps circulating because Dutch speakers recognise the casual tone instantly, and other viewers still read the cheerful energy even without the words.