What is a chōnin?
What is a chōnin? No, wait, don't look at the Wikipedia article. I think that this story from Nishikawa Joken 西川如見's Chōninbukuro 町人袋 ("Bag [of knowledge] for chōnin" is more illustrative:
At a lively gathering of many chōnin, one said "The samurai-stink of samurai, the scholar-stink of scholars, and the miso-stink of miso are most disagreeable." An elder replied, "Exactly so. And yet, the chōnin-stink of chōnin is a delight." In this there is truth indeed.
I'm just going to come out and say it. Chōnin = hipster.
languagehat:
The Russian equivalent were the rznochintsy:
http://en.wikipedia.org/wiki/Raznochintsy