What is light bulb moment?

when you have that light bulb appear and get a new idea. Just like in the cartoons you have one your self.

Hey guys I just got an idea; yes I had a light bulb moment!

light bulb moment - video

The light bulb moment is the moment in time when someone comes to the realisation that they are gay.

He had a light bulb moment whilst watching the gay pride parade when he realised that he was just like them.