Spartalia is a definition that is combination of words Sparta+Italia and firstly used in Hetalia board on drawing website Iscribble.
It comes to describe something that is illogical or has nothing to do with the current topic.
-John enters a board and sees its scribbled all the way-
John: "what the hell, is this Spartalia?
Max: This is SPARTALIAAA~
John: what the hell?