Hook line and sinker
指完全被欺騙或上當，毫無保留地相信謊言。
形容完全被騙
英文釋義
to completely believe or fall for something, often used to describe someone who is easily deceived
例句
He fell for the scam hook, line, and sinker, losing all his savings.
典故來源
源自釣魚術語，鉤、線、墜子全被魚吞下，比喻被騙得徹底。