yes, a dumster can be a skip-- but we use dumpster for a large bin used for commercial trash (weekly basis) and also for the super large, house renovation bin, (once or twice in a lifetime) size.

the weekly ones are dempsey dumpsters, and they sometimes have pipes that are used stuck into side, and the pipes go into groves on the truck and the truck has a mechanism for lifting and empting..

there are at least 5 styles of dumpster trucks that i know of.. and i don't make a study of it. (except when stuck in a traffic jam, behind a garbage truck making a collection!)