Old chestnut
A topic, saying, story or joke that has been repeated so much that it has become boring and irksome
Drive someone nuts
To make someone very annoyed or go crazy
Take a leaf (or page) out of someone’s book
To follow someone’s example or imitate them in a certain way
Squirrel away
To hide, reserve, or hoard something forfuture use
Save for a rainy day
To reserve something (usually money) for a future need
Get wind of something
To become aware of something, especially something being kept secret, through indirect means
Autumn years
The later years of a person’s life when they are past middle age and approaching old age
Be nuts about someone or something
To be obsessed with someone or something
Turn over a new leaf
To change your life by starting to be a better person or stopping a bad habit