Expressions about saving money. π°πΈπ΅πΆπ·π΄π³πͺ Save for a rainy day. It means save money for the future when you need it. Example: We live in a difficult time. One must save a for a rainy day. Tighten oneβs belts. It means to cut oneβs spending. Example: The economy is in a recession, people must tighten their belts.