Flashing (driving) , flashing headlights in a prompt action to warn oncoming drivers of dangers ahead (police who are speed spotting for example)
Flashing (retail) , getting rid of gaps on shelves to create a 'fuller' shelf
Flashing (cinematography) , a technique that desaturates the color and makes blacks become grey, so that one sees more into the shadow areas
Flash Mob bing, an activity in which a group of people gather at a certain place to engage in a bizarre or comic activity, having arranged to do so using (in most cases) the internet or other means of electronic communication
Molding Flash , excess material attached to a molded product which must usually be removed
