to not spend enough time or money on something, or to not use enough of something in order to do a job or activity as it should be done

Many old people skimp on food and heating in order to meet their bills. 许多老人在食物和供暖方面省吃俭用才能支付得起。

When choosing a hotel, do not skimp. 选择旅馆时不要吝啬。