I do not speak French. I think that this title may mean "On the fly," but that's according to the small amount a google search could tell me.
I've followed this flickr stream for a while, and I always love the photos. They are simply gorgeous. This person really has an eye for beauty in simplicity, but also has it down to a science. It's amazing. Every photo is beautiful. Extreme depth of field, texture, antiqued tones. They really have quite a collection.