なんじゃMeanings1expressionwhatusually written using kana aloneEmphatic, colloquial expression meaning 'what'. Often used in exclamations or rhetorical questions, especially by older male speakers or in dialectal speech.See also: 何なんじゃ、この騒さわぎは。What's all this commotion?なんじゃ、もう終おわったのか。
