Why did the photographer get kicked out of the concert?

This joke hinges entirely on a classic bit of wordplay, using a single word with two very different meanings to create a surprising and silly punchline. The humor comes from the double entendre of "flashing." In the context of a photographer, "flashing" refers to the bright burst of light emitted by a camera's flash unit, used to illuminate a subject. However, the more scandalous interpretation of "flashing" involves indecent exposure, which is definitely a quick way to get yourself ejected from any public event, especially a concert.

The real-world context behind this gag involves both concert etiquette and photography norms. Many concerts and venues prohibit flash photography, not just because it can be distracting or annoying to other audience members, but also because it can be incredibly disruptive to the performers themselves. Imagine trying to sing a ballad with blinding flashes going off in your face! So, while a photographer using their flash might just be breaking a rule, the joke cleverly swaps that minor infraction for a far more shocking and amusing reason for their sudden exit.