Does your cat meow "Hello"?

How coincidental! My oldest cat, although huge, didn't have a meow for the first few years of his life. He'd open his mouth and either nothing would come out or just the tiniest hint of a meow, more like a litten meow. Then after we moved to our new home 4 years ago, he stared with the "hello" meows. And not soft ones either; they are super loud. When I tell my friends this, they usually don't believe it. He only does it at night and shortly have the youngest cat starts it up. Maybe he learned it from her.