roughly holding the back of an animal's or person's neck :
She grabbed him by the scruff of the neck and threw him out.
roughly holding the back of an animal's or person's neck :
She grabbed him by the scruff of the neck and threw him out.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005