Skip to main content
to eat one's hat

to eat one's hat

9.1
To say you are very sure something will not happen and would do something silly if it did
  • idiom
  • Informal
translation icon : me comeré mi sombrero
  • Well, if he is, I will eat my hat.

Examples

Synonyms

fat chance
vsto eat one's hat
  • Informal
2 8.1

A way to say something is very unlikely to happen

is a personal promise to do something absurd if it happens
pigs might fly
vsto eat one's hat
  • Informal
1 9.8

A phrase people say to show something is very unlikely to happen

is a personal promise to do something absurd if it happens
in dreams
vsto eat one's hat
  • Informal
1 7.5

Very unlikely to happen or almost impossible

is a personal promise to do something absurd if it happens
unpossible
vsto eat one's hat
  • Informal
9.9

A word people say when they cannot believe something

is a personal promise to do something absurd if it happens
first of never
vsto eat one's hat
  • Informal
9.9

People say this to show that something will not happen

is a personal promise to do something absurd if it happens

How Certain

to eat one's hat
  • Informal
9.1
slim chance
10 3.4
doubtfully
4 3.8
maybe
1.0

Surface Forms

eat one's hat infinitive
eaten one's hat past participle
eating one's hat present participle
eats one's hat third person singular

Morphology

eat + one + hat

The intended meaning (expressing extreme improbability or a vow to do something absurd if an unlikely event occurs) cannot be derived from the literal meanings of 'eat', 'one's', and 'hat'—the image is an absurd hyperbole whose conventional meaning is idiomatic. This is a fixed, conventionalized English idiom whose metaphorical sense is unpredictable and unlikely to be guessed by a B1 learner who knows the parts but has not encountered the expression.

Etymology

The idiom eat one's hat comes from a funny, literal picture: someone saying they will eat their hat if something happens. So it is a joking way to say you think that thing is 'very unlikely'.