soap·box/`sopˏbɑks; ˈsəʊpbɒks/ n be/get on your soapboxinformal to start talking about your opinions and continue for a long time, especially in a way that is boring and annoying for other people to listen to 【非正式】 大发议论，高谈阔论〔尤指说话沉闷并使听者恼火〕: Don't mention politics or Dan will be back on his soapbox again! 别提政治，不然丹又会没完没了了！