fall for something hook, line and sinker
fall for (someone or something) hook, line, and sinker
1. To become completely infatuated or in love with someone. The moment I met my wife, I fell for her hook, line, and sinker.
2. To believe unquestioningly that something is true, especially something intended to dupe one. I told them that I like this stupid school, and they fell for it hook, line, and sinker—I guess I'm a pretty good actress.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
fall for something hook, line and sinkeror
swallow something hook, line and sinker
If someone falls for something hook, line, and sinker or swallows something hook, line and sinker, they believe it completely, even though it is often not true. He told her a story about having lost his money, and she fell for it, hook, line and sinker. There were leaks to the press, and journalists swallowed it hook, line and sinker.
Collins COBUILD Idioms Dictionary, 3rd ed. © HarperCollins Publishers 2012