the activity of searching through dumpsters or other large containers holding waste, in order to find food that can still be eaten or objects that can still be used

As a child, he went Dumpster diving, collecting old electronics from the garbage and restoring them. 小时候，他去翻垃圾箱，从垃圾中收集旧电子产品，然后把它们修好。

Many identity thieves get their information by simple Dumpster diving. 许多身份窃贼简单地通过翻垃圾箱来获取信息。