What does 脳みそ mean?
脳みそ is a Japanese noun meaning “brains (informal)” in English. It is written as 脳みそ in kanji, のうみそ in hiragana, and noumiso in romaji. This word is part of JLPT N2 vocabulary.
Example sentences
少しは脳みそを使えよ。
Use your brain a bit.
脳みそが疲れた。
My brain's tired.