It means someone who is unwilling to spend money, or is not so generous.

它指的是不愿意花钱的人，或者不那么慷慨的人。

The leadership of the orphanage were unwilling to spend the money.

孤儿院的领导不愿意花这笔钱。

This resulted in a rise in food prices and the economy stagnating, as South Africans were unwilling to spend money due to the increased cost of borrowing.

这导致食品价格上涨和经济停滞，因为南非人由于借贷成本增加而不愿花钱。