Select the most appropriate meaning of the given idiom. Donkey’s years

The most appropriate meaning of the idiom "donkey's years" is a long time.

This idiom is thought to have originated in the 17th century and is believed to refer to the long lifespan of donkeys. It is often used to describe a period of time that is long and indefinite. For example, you might say "I haven't seen you in donkey's years." This means that you have not seen the person in a very long time.

The other options are not as accurate descriptions of the meaning of the idiom.

• Leisure time: This means time that is free from work or other obligations.
• Bad time: This means a time of difficulty or misfortune.
• Good time: This means a time of enjoyment and pleasure.