My daughter asked me "Dad, what does 'coming out' mean?"
I said..."well..it's when a gay person decides they have had enough of pretending they are straight, They 'come out' which symbolises one's self, and the freedom form rules and expectations imposed by society. It's a sign of how human beings are becoming more open-minded and accepting of one another's differences.
Mind you, if it's a Nigerian, it usually means parole.