As I’ve written before, I’m not a big believer in good pronunciation = fluency or excellent command of dialect = fluency, but I have come to realize that learning dialects gives you more variations to help reinforce your understanding of 標準語 patterns. And it’s also nice to know what people on TV are saying.
One of my favorites originates in Nagoya. My former roommate, Nagoya born and raised, used to say it all the time, often when I dropped some obscure Murakami fact that no one should ever know. (Murakami’s first use of the name “May Kasahara” wasn’t in The Wind-up Bird Chronicle – it was in the 夜のくもざる series of super-shorts in the story “Eel”. Either that or the short story “The Twins and the Sunken Continent.” Can’t remember.)
よう知っとるな, when you convert it back into unslurred words, is よく知っておるな. And then further into 標準語, よく知っているね.
おる and おります are often used as humble keigo, and this article claims that it is also used to deprecate and insult (much like the phrase してやる rather than してあげる), but I think in this case it’s just dialect common in areas West of Tokyo. This phrase might actually be Kansai-ben. I always associate it with my roommate and assumed it was from Nagoya. Either way, a cool little phrase to bust out every now and then when somebody impresses with some wicked truth – “Damn yo, how you get so knowledgeable and shit?”