What is a click in urban dictionary?

In Urban Dictionary, click has many user-submitted slang definitions that vary from sweet to crude, and the meaning depends heavily on context. One popular definition is that a click is a group of close friends or a clique, as in my click, meaning my crew or my squad, spelled click but pronounced like clique. Another common definition is that a click means a good photo, as in nice click, used especially in South Asian English. Another entry defines to click with someone as to instantly bond, have chemistry, or vibe well, like we clicked on the first date. In drug slang entries, to click means to feel high, light, and euphoric, or for something to kick in. Some entries define click as the sound of a gun being cocked, or a kilometer in military slang spelled klick. More crude entries define click as a unit of measurement for something else. Urban Dictionary also has entries for click as a verb meaning to understand suddenly, as in it finally clicked, and for click as in to become successful. Because Urban Dictionary is crowd-sourced and not edited, many definitions are humorous, exaggerated, or region-specific, but the dominant themes are friendship groups, photography, and human connection.