A very long time.
a long time, an age, ages, ages and ages, a time, a lifetime
- ‘we've been close friends for donkey's years’
- ‘The feeling in the village is really angry, people are very upset because of the amount of people who have played down there, going back donkey's years.’
- ‘I have lived round here for donkey's years and this seemed to be the worst managed match.’
- ‘It is the best lead toys collection we've seen in donkey's years and we are expecting that it will attract national collector interest.’
- ‘But residents are sticking by tradition, claiming housewives have been hanging out their washing across the back alley for donkey's years.’
- ‘Some people don't even have septic tanks - it's been that way for donkey's years - and will still pump raw sewage into the drains.’
- ‘Many groups have done it informally for donkey's years.’
- ‘I know one couple who have lived together for donkey's years, but she is buying the house and he pays his rent - in cash - every pay day.’
- ‘I felt as if I had known all the patrons for donkey's years.’
- ‘The " kits " for each experiment had been around for donkey's years.’
- ‘I have been a member for donkey's years.’
Early 20th century a pun on donkey's ears, with reference to their length, reinforced by the idea that donkeys live a long time.
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