What is elephant in the room ne demek?

"Elephant in the room" is an idiom used to describe a situation where there is an obvious problem or controversial issue that everyone is aware of, but nobody wants to talk about or address. The elephant represents the problem that is large and hard to ignore, but people choose to ignore it to avoid conflict or discomfort. Ignoring the problem can cause further issues, as it prevents people from finding a solution or making progress. The expression is often used in a workplace or social setting, but can also be applicable to personal relationships or political issues.