fluff
/flʌf; flʌf/ n
1 [U]
(a) soft feathery pieces of material shed by blankets, etc （毛毯等落下的）绒毛
My best sweater is covered with fluff. 我那件最好的毛衣上满是绒毛.
(b) soft fur or down of animals or birds （禽兽的）绒毛.
2 [C] (infml 口) unsuccessful attempt at sth; mistake or blunder 未成功的尝试; 错误; 失误.
3 (idm 习语) a bit of fluff => bit1. fluff, v
1 [Tn, Tn.p] ~ sth (out/up) shake sth into a soft full mass; puff or spread sth out lightly 抖开某物; 抖松某物
fluff up the pillows 抖松枕头
The bird fluffed (out) its feathers. 那鸟抖抖身子蓬开羽毛.
2 [Tn] (infml 口) be unsuccessful at doing (sth); perform (sth) badly; bungle 未做成（某事物）; 将（某事）搞坏; 出错
fluff a stroke, eg in golf 击球失误（如高尔夫球）
fluff one's lines in a play 说错剧中台词
He really fluffed his exams. 他的确考糟了.