Japanese slang for having an orgasm
One of the PSG (panty and stocking with garterbelt) OST is called Flying Away.
Flying away is when you leave the place you grew up, by yourself, and you also leave your family (but not forever), usually to somewhere that is different than where you grew up. You don't have any intentions of returning, and you are leaving behind everyone for a better life.
an example of flying away is when you grow up in the midwest and move to the southwest coast in California because you hated cold weather, you are only coming back to see your family.