What's an orgasmic experience? (NSFW)

@downtide recently made the comment that going to this special museum was nearly orgasmic. I have heard people use this term and I have myself used it….usually to describe a food I was served or prepared. I went to see a concert last Thursday night, and watching Billy Sheehan, Ritchie Kotzen and Mike Portnoy jam their asses off was one of those musical orgasmic moments.

What is an orgasmic moment for you and can you share a couple examples.