a fold or band at the end of a sleeve which encircles the wrist
chiefly NAmer a turned-up hem of a trouser leg
informal (usu in pl) a handcuff
off the cuff
in reference either to speaking in public or to pronouncing on some matter: without preparation; impromptu, as though from notes hastily made on one's shirt cuff
cuffed adj
[Middle English in the sense ‘glove, mitten’; previous history unknown]