首くび根ねっこ

noun

scruff of the neck

Refers to the back of the neck, especially when grabbed or held. Often used in the phrase 首根っこを捕まえる (to grab someone by the scruff of the neck).

• 母ははは猫ねこの首くび根ねっこを掴つかんで持もち上あげた。

  My mother grabbed the cat by the scruff of its neck and lifted it up.

• 彼かれは弟おとうとの首くび根ねっこを捕つかまえて、部屋へやに連つれ戻もどした。

  He grabbed his younger brother by the scruff of the neck and dragged him back to the room.