fall for (someone or something) hook, line and sinker(redirected from fell for one hook line and sinker)
fall for (someone or something) hook, line and sinker
1. To be completely infatuated with someone. The moment I met my wife, I fell for her hook, line, and sinker.
2. To believe unquestioningly that something is true. 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.