Köpfchen in das Wasser, Schwänzchen in die Höh is the best known couplet from Alle meine Entchen, a traditional German children's song about ducklings swimming on a lake. The lyrics have been sung in kindergartens and families for generations, making the line instantly familiar across German speaking countries. Online, the short excerpt circulates on its own as a cute reaction sound for water scenes, ducks and bath time, separate from the full song, because the image of a head down and tail up is universally understood.