be talking through (one's) hat(redirected from are talking through their hat)
be talking through (one's) hat
1. To be saying foolish things; to be talking of nonsense. Don't pay Jonathan any mind, Mary, he's just talking out of his hat again.
2. To be exaggerating one's achievements or knowledge of some subject; to be bluffing or boasting. Dorothy keeps saying she can outrun anyone in our school, but she's talking out of her hat if you ask me. It seemed like the candidate was talking out of his hat for a while when the debate turned to the topic of tax policy and law.
be talking through your hatINFORMAL
If someone is talking through their hat, what they are saying is silly or totally incorrect. Mrs Smith had told Adam he was talking through his hat if he thought communism would work. Quite honestly, I think he was talking through his hat.