In the article on Latin in The Economist to which Anu refers us in AWADmail issue 108, the following line appears: "No matter that Latin, in the last decades of its heyday, was as dog-eared and scatty as any other well-used language, and that the Latin of the street (or, for that matter, the walls) often ignored the rules."

I had rather thought that "scatty" (1) was slang and (2) meant absent-minded, forgetful, not mentally focused. What does it mean in this sentence?