Grimelkin
"Grimelkin" is a German term derived from the words "Grimmig" and "Schlüsselkind". "Grimmig" translates as "po-faced" and "Schlüsselkind" as "Latch-key kid." Together, the term "Grimelkin" loosely translates as "red-headed stepchild."
The group of orphans were considered nothing but Grimelkins due to their rowdy behavior.