talk through one's hat

talk through (one's) hat

1. To say foolish things; to talk nonsense. Don't pay Jonathan any mind, Mary, he's just talking through his hat again.
2. To exaggerate one's achievements or knowledge; to bluff or boast. Dorothy keeps saying she can outrun anyone in our school, but she's talking through her hat if you ask me. It seemed like the candidate was talking through his hat for a while when the debate turned to the topic of tax policy.
See also: hat, talk, through
Farlex Dictionary of Idioms.

talk through one's hat

Talk nonsense; also, hold forth about something one knows very little about. For example, He was talking through his hat when he described the shipwreck, or Mother went on and on about various screwdrivers but in fact she was talking through her hat . The allusion in this idiom makes no sense either, which may be the point. [Late 1800s]
See also: hat, talk, through
The American Heritage® Dictionary of Idioms by Christine Ammer.

talk through one's hat, to

To talk nonsense; to pontificate about something one knows little or nothing about. This late nineteenth-century expression calls up an image that makes no sense whatever. Theodore Pratt (Thunder Mountain, 1944) added a little meaning to it, writing, “You’re talking through your hat, and your hat is full of holes.”
See also: talk, through
The Dictionary of Clichés by Christine Ammer
See also:
  • talk through (one's) hat
  • talk through hat
  • talk through one’s hat
  • talk through your hat
  • talk out of (one's) hat
  • talk rot
  • talk through one's hat, to
  • talk out of the back of (one's) head