Donkey’s years

Do you know the English expression “donkey’s years“? Read the conversation below. Can you guess the meaning?

Martin: How long have you known Sarah?

Lynda: Oh, I’ve known her donkey’s years. We went to school together.

Does it mean:

a) a short time

b) since one’s school days

c) a long time

d) since one was a child

The answer is below! ↓

two brown donkeys

Photo by chris carroll on Pexels.com

 

Answer: c) a long time