Mooning is the art of displaying one's bare buttocks by removing clothing, e.g., by lowering the backside of one's trousers and underpants, usually bending over, whether also exposing the genitals or not. ... Some jurisdictions regard mooning to be indecent exposure, sometimes depending on the context.
Why do they call it mooning?
The Oxford English Dictionary dates moon and mooning to student slang of the 1960s, when the gesture became increasingly popular at American universities. The term derives from the use of moon or moons as slang for the bare buttocks, a usage that dates back as far as the 18th century.
How do you do mooning?
Mooning is mostly done as a joke and by catching a viewer by complete surprise. It happens in a blink of the eye. Make sure that you move away just as quickly from the site of the mooning so you do not get caught.
