Gute morje is a dialect spelling of guten morgen, heard in parts of western Germany as a casual morning greeting, while Rambo is the long running action film character known for a terse, tough delivery. Put together online, the phrase became a shareable joke clip rather than a serious movie quote, passed around in chats and short edits where a hard voice saying something friendly is funny on its own. Its appeal has lasted because the greeting is instantly understood, even by listeners who do not speak German.