Schorf literally translates to "scab" or "crust". It's a rather unusual and striking word to find in song lyrics, making it immediately memorable and intriguing.
In the context of "Der Fremde," the line "Und weisen auf meinen Schorf" (And point to my scab) suggests a deeper meaning. It implies that the villagers are scrutinizing the protagonist's flaws, past wounds, or imperfections, highlighting his status as an outsider. This vivid imagery makes the word particularly impactful and unique to the song's narrative.
Der Fremde is about being the one person a village never quite lets in.
The narrator hears himself talked about in whispers, sees people point at the sore on his skin, and suspects poison in the food he is given. Nothing is ever said to his face. The rejection arrives as quiet gossip and small cruelties instead.
So he does the one thing still left to choose. He ties up his bundle and sets out, in the manner of ancient forefathers. Leaving is not a triumph here. It is the oldest answer available to someone treated as an outsider, and the closing lines say the reason plainly: he remains the stranger in the village.
Dota Kehr sings it like an old folk song rather than a protest, and that is what makes it land. The words could belong to almost any century, which is the quiet argument of the song. This is a very old way of treating people who do not belong.