something is the new rock 'n' rollBritish EnglishBrE used to say that a particular activity has become very popular and fashionable and is being discussed a lot on television, in newspapers etc 某事物很红火[流行] Hadn’t Mark heard that cooking was the new rock ‘n’ roll? 难道马克没听说吗? 现在烹饪最时髦了。
→ something is the new rock 'n' roll at rock 'n' roll(1)