sinker
noun /ˈsɪŋkə(r)/
/ˈsɪŋkər/
Idioms - a weight that is attached to a fishing line or net to keep it under the water
（钓丝或渔网上的）沉子，铅锤，坠子
Idioms
hook, line and sinker
- completely
完全地；毫无保留 - What I said was not true, but he fell for it (= believed it) hook, line and sinker.
我的话并非实话，但他完全相信了。
- What I said was not true, but he fell for it (= believed it) hook, line and sinker.