to take everything out of a room, car, container, etc. and clean the inside of it

I found these photos while I was cleaning out my cupboards. 我清理橱柜时发现了这些照片。

to use or steal all of someone's money or goods

Buying our new house has completely cleaned us out. 买新房子把我们完全掏空了。

Richard came home for the weekend and completely cleaned us out of food. 理查德回家过周末，把我们的食物一扫而光。

The burglars cleaned out the shop. 盗贼把商店洗劫一空。