くびねっこ

くびねっこ 【首根っこ 】the scruff of the [one's ] neck ; 【襟首 】one's shirtcollar .▸ 首根っこをつかむ hold 〘him 〙 by the scruff of his neck .首根っこをおさえる take [｟やや書 ｠ seige ] 〘him 〙 by the scruff of the neck 〖人を思い通りにできる 〗have [get ] 〘him 〙 by the short hairs 【人をあごで使う 】have 〘him 〙 under one's thumb .