中文翻译与英英解释

旧货商，废品商。
帆船船工。

junk:    n. 毒品〔尤指海洛因〕。

man:    n. (pl. men ) 1.〔无冠词、单数〕人，人类 ...

Junk man is the (largely American) term for a person that buys, trades, or collects disparate items (scrap and usable/repairable things) that are considered of little or no value to their owners. This person then tries to sell or trade these items at a profit to other individuals and scrap yards.