Cách sử dụng
The expression "talk through your hat" means to speak about something without knowing any facts or just saying things that are not true. It is often used to describe someone who is making things up or talking about a subject they know little about. For example, if someone says "I think vaccines cause autism, even though there is no scientific evidence to support that claim," you could say "You're talking through your hat." You could use this expression in situations when you think someone is speaking without knowing the facts or is pretending to know something they really don't.