chaff

n. 谷壳, 糠, 揶揄
vt. 开玩笑, 戏弄
vi. 开玩笑, 戏弄
【电】 杂屑器
相关词组:
be caught with chaff

形容词:chaffy 动词过去式:chaffed 过去分词:chaffed 现在分词:chaffing 第三人称单数:chaffs 

chaff

n.（名词）
Botany Thin, dry bracts or scales, especially:
【植物学】 壳：薄而干的苞叶或鳞片，尤指：
The dry bracts enclosing mature grains of wheat and some other cereal grasses, removed during threshing.
谷壳：包在成熟小麦粒和其他一些作物粒上的干壳，在脱粒时被除去
The scales or bracts borne on the receptacle among the small, individual flowers of many plants in the composite family.
膜片：许多菊科植物单朵小花的花托上长的鳞片或苞叶
Finely cut straw or hay used as fodder.
草料：切碎的用作饲料的稻草或干草
Trivial or worthless matter.
废物：琐屑或无价值的东西
Strips of metal, foil, or glass fiber with a metal content, cut into various lengths and having varying frequency responses, that are used to reflect electromagnetic energy as a radar countermeasure. These materials, usually dropped from aircraft, also can be deployed from shells or rockets.
金属箔：含有金属成分的一些金属片、箔片或玻璃纤维，切割成不同长度并具有不同的反射频率，以反射电磁能来干扰雷达。这些材料通常由飞机上投下，也可布置于炮弹或火箭上

来源：
Middle English chaf
中古英语 chaf
from Old English ceaf
源自 古英语 ceaf

【引伸】
chaf.fy
adj.（形容词）

---------------另--------------
chaff
chaff 2

v.（动词）
chaffed,chaff.ing,chaffs
v.tr.（及物动词）
To make fun of in a good-natured way; tease.
打趣：善意地开玩笑；打趣
v.intr.（不及物动词）
To engage in playful teasing.See Synonyms at banter
开玩笑参见 banter
n.（名词）
Good-natured teasing; banter.
戏谑：善意的取笑；戏谑

来源：
Possibly alteration of chafe
可能为 chafe的变化
or chaff
或 chaff