British informal A very long time: we’ve been close friends for donkey’s years
More example sentences
- 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.
Definition of donkey's years in:
- The US English dictionary