adj [only before noun]
throwaway remark/line/comment etc
something that someone says or writes quickly, without thinking carefully about it
　It was only a throwaway comment.
　He claims people overreacted to a few throwaway lines in the article.
throwaway products have been produced cheaply so that you can throw them away after you have used them
= disposable
　a throwaway cigarette lighter
throwaway society
used to show disapproval when talking about modern societies in which products are not made to last a long time