I'll eat my hat!

eat (one's) hat

A humorous action that one will allegedly take if something very unlikely happens. Kevin is always late, so if he actually shows up on time, I'll eat my hat.
See also: eat, hat

I’ll eat my ˈhat!

(spoken) used to say that you think something is very unlikely to happen: They’re always late — if they get here before eight o’clock, I’ll eat my hat.
See also: eat
References in periodicals archive ?
DCC put on a show second to none and if we don't see the Australians there before long I'll eat my hat