n. An aimless idler; a loafer. [Fr. <flâner, to idle about, stroll.]
And flâneurs were something that literature people talked about. I had never understood why; they would just say that someone was a flâneur, or a voyeur, and seem satisfied. I knew that flâneurs walked around, and voyeurs looked at things.
Elif Batuman, Either/Or
Andrea's Lexicon 