noun
ragman; junkman; garbage collector
Polite term for a person who collects or deals in waste paper, rags, or scrap. The さん suffix makes it less direct than 屑屋.
昔、くず屋さんが古新聞を集めに来た。
In the old days, the ragman came to collect old newspapers.
くず屋さんに段ボールを引き取ってもらった。
I had the junkman take away the cardboard boxes.
Same meaning but without the polite さん suffix; can sound more direct or occupational.
Compound of くず (waste, scrap) + 屋 (shop, dealer) + polite suffix さん.