1
put [sth] in a fob
fob 作名词时指马甲上装怀表的小口袋，也可指表链上的饰物或短表链。
He put his pocket watch in his fob.
他把怀表放进了表袋。
表袋
先理解核心含义，再看它在真实句子里的用法。
表袋
a small pocket in a vest for holding a pocket watch
He put his pocket watch in his fob.
他把怀表放进了表袋。
裤子腰线附近或背心、马甲上的小口袋,用于存放钱或贵重物品,尤指怀表。
A little pocket near the waistline of a pair of trousers or in a waistcoat or vest to hold money or valuables, especially a pocket watch.
连接此口袋与怀表的短链或缎带。
A short chain or ribbon to connect such a pocket to the watch.
挂在此链上的小饰物。
A small ornament attached to such a chain.
手持电子设备,可用作遥控器或解锁汽车、门等的钥匙,即现代车钥匙。
A hand-held electronic device that can be used as a remote control or as a key to unlock motor cars, doors, etc., and thus, modern car keys.
He kept his grandfather's pocket watch in the small fob on his vest.
他把祖父的怀表放在马甲上的小表袋里。
The silver fob on the watch chain caught the light as he moved.
他走动时，表链上的银色饰物闪闪发光。
A short leather fob joined the pocket watch to his belt.
一条短皮表链把怀表系在他的腰带上。
fob 作名词时指马甲上装怀表的小口袋，也可指表链上的饰物或短表链。
He put his pocket watch in his fob.
他把怀表放进了表袋。
fob off 可拆开用，fob sb off with sth 表示“用…敷衍/蒙骗某人”。
Don't fob me off with vague promises.
别用含糊的承诺来搪塞我。
fob sth off on sb 表示“把（假货/劣质品）骗卖给某人”，也可说 fob sth off onto sb。
She fobbed the damaged laptop off on an unsuspecting buyer.
她把那台损坏的笔记本电脑骗卖给了一位不知情的买家。
Not this
He fobed the customer with a fake watch.
Use this
He fobbed the customer with a fake watch.
fob 的过去式和过去分词应双写词尾辅音字母再加 -ed，拼作 fobbed，不能只加一个 b。
Not this
He has two watch fob on his vest.
Use this
He has two watch fobs on his vest.
fob 是可数名词，表示复数时应加 -s；受汉语无复数标记的影响，容易漏掉词尾。
Not this
I left my wallet in my fob.
Use this
I left my wallet in my pocket.
fob 特指怀表小袋或表链饰物，不是普通口袋；表示一般口袋应用 pocket。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
怀表短链；表链饰物
A gold watch fob dangled from his waistcoat pocket.
一条金表链饰物从他的马甲口袋上垂下来。
（裤腰或马甲上的）怀表小袋
He keeps his grandfather's watch in a fob pocket.
他把祖父的怀表放在一个表袋里。
（用谎言或借口）搪塞，敷衍；骗人接受
The salesman tried to fob off a fake painting on the collector.
那个售货员试图把一幅假画骗卖给那位收藏家。
用…搪塞；以…敷衍
Asking for a refund, she was fobbed off with a store credit.
她要求退款，却被用一张商店信用单搪塞过去。
搪塞；敷衍；欺骗
He tried to fob me off with a promise he knew he couldn't keep.
他试图用一个他知道自己无法兑现的承诺来搪塞我。
把（劣质物品）硬塞给某人；骗某人接受
Don't let him fob his old laptop off on you.
别让他把旧笔记本电脑硬塞给你。
Use fob naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
fob 作名词指表袋/短表链：想象怀表装在西装马甲的小袋里，链饰(fob)从袋口垂下——fob 就是那个袋和链。
语域：neutral 常见场景：pocket-watch repair、antique watch collecting、historical fashion descriptions 作为名词，fob 指怀表链或表袋，属于较专门的说法，在日常对话中不常用，多出现在怀表维修、古董收藏或历史服饰描写等特定语境中。整体语域趋于中性，但在普通口语中较少见。
这些词与 fob 押韵，拼写都以 -ob 结尾，读音均为 /ɒb/。注意形近词：fog /fɒɡ/ 和 fop /fɒp/ 末尾辅音不同，foe /fəʊ/ 读音完全不同。
Dictionary facts from ECDICT, WIKTIONARY.