血ちの巡めぐりが悪わるい

expression

dim-witted; slow on the uptake

Idiomatic expression literally meaning 'blood circulation is bad', used to describe someone who is mentally slow or dull-witted. Often used in a critical or teasing manner.

• 彼かれは血ちの巡めぐりが悪わるいから、説せつ明めいしてもなかなか理り解かいできない。

  He's slow on the uptake, so even if you explain it to him, he has trouble understanding.

• そんな簡かん単たんなこともわからないなんて、血ちの巡めぐりが悪わるいんじゃない？

  If you can't even understand something that simple, aren't you a bit dim-witted?