To be anachronous or unpopular. The "dodo" is a now-extinct bird. Although accepted in the 1970s, disco music is as asleep as a airhead today.Learn more: dead, dodoLearn more:
An be as dead as a dodo idiom dictionary is a great resource for writers, students, and anyone looking to expand their vocabulary. It contains a list of words with similar meanings with be as dead as a dodo, allowing users to choose the best word for their specific context.
類似の言葉の辞書、別の表現、同義語、イディオム イディオム be as dead as a dodo