名词颈背; <英，非正>邋遢人; 揪住人（或动物）的颈背
1. (从后面)揪住脖颈,抓住衣领
If someone takes you by the scruff of the neck, they take hold of the back of your neck or collar suddenly and roughly.
e.g. He picked the dog up by the scruff of the neck.
他一把抓住狗的脖子把它拎起来。