Google's domain

Just found out from a college friend who spent most of her life in South Africa that the country has a slang term for markers, "cokies." I looked it up on Google and as it turns out, there's next to nothing about it on the internet. There's one blog where someone talks about how surprised she was to find out about the term, but nothing else anywhere. This is the first thing that I've found on my own that hasn't been well-documented on Google.