Through his hat

[Pupil]

Test No. incompl/advan-41 "Talking through his hat", question 2

Whatever you do take no notice of him because he's not thinking straight - he's talking ......... his hat.

(a) up
(b) through
(c) at
(d) under

Test No. incompl/advan-41 "Talking through his hat", answer 2

Whatever you do take no notice of him because he's not thinking straight - he's talking through his hat.

Correct answer: (b) through

Hi everybody! I don't understand exc. 'through his hat'
Thank you for your help.
Pupil
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the more we learn
the less we know

[Torsten]

Hi Pupil,

As you have noticed, the English language is full of idioms - a fact that makes learning English both, interesting as well as challenging.
Fortunately enough, in Alan's tests you often can figure the meaning of an idiom:
If you take a look at the sentence in question you will find that a person who talks through their hat doesn't know what they talk about:

'Whatever you do take no notice of him because he's not thinking straight - he's talking through his hat.'
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Test Of English for International Communication
TOEIC Preparation & TOEIC Vocabulary

[Pupil]

Hi Torsten, thank you
Pupil
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the more we learn
the less we know

[werdna]

Would you explain this idiom "talking through smb?s hat" more exactly, may be in the another context or example?
in earlier explanation was used "talking through head? Is it a typo?

Thanks a lot