What does "Familiarity breeds contempt" mean? Could you give me some examples?

Native speaker’s answer
Rebecca
This is actually an idiom that means once you get to know someone, you start to lose respect for them because you've also seen their bad qualities. If we were to break down the meaning of each word, we see that "contempt" means that something or someone is not worth respecting. Here, "breed" means to cause or make happen, and "familiar" means to know someone well. So by becoming "familiar" with someone, you lose respect for them. Ex: Familiarity bred contempt when we dated. Ex: Once you meet your celebrity hero, you realize that familiarity breeds contempt, and they're not that great.