cuff
noun [ C ] uk/kʌf/ us/kʌf/
(MATERIAL ON CLOTHES)
袖口
the thicker material at the end of a sleeve closest to the hand
US (UK turn-up)（裤脚的）翻边
the part of a trouser leg that is turned up
(HIT)
（开玩笑地）轻拍，轻打
the act of hitting someone with your hand in a light, joking way
She gave him a playful cuff on the shoulder. 她顽皮地在他肩头轻拍了一下。
(HANDCUFFS)
cuffs[ plural ] 手铐（handcuffs的非正式说法）
informal for handcuffs
Idiom
off the cuffidiom 未经准备;未加思索;即兴地
If you speak off the cuff, you say something without having prepared or thought about your words first.
I hadn't prepared a speech so I just said a few words off the cuff. 我没准备发言，所以就随便说了几句。
[ before noun ] an off-the-cuff remark 即兴评论
cuff
verb [ T ] uk/kʌf/ us/kʌf/
(HIT)
（开玩笑地）轻拍，轻打
to hit someone with your hand in a light, joking way
His brother cuffed him playfully on his ear. 他哥哥开玩笑地在他耳朵上拍了几下。
(PUT IN HANDCUFFS)
informal（给…）戴手铐
to put someone's hands in handcuffs
He was led out of the courtroom with his hands cuffed behind his back. 他被带下被告席时双手被铐在背后。