a nest egg
Meaning: If you have a nest egg, you have money put away for the future.
- When Indira inherited some money from her grandpa, she didn't spend it. She decided it was time she had a nest egg so she put it into an investment fund.
- Poor old Bill. He married a girl while he was in some foreign country and she got her hands on his nest egg, and now he's back here - with nothing.
Kylie has decided she wants a nest egg, so she's