adv. phr. , informal Without question or doubt; completely. Johnny was so easily fooled that he fell for Joe's story, hook, line and sinker. Mary was such a romantic girl that she swallowed the story Alice told her about her date, hook, line and sinker. Bobby trusted Jim so he was taken in by his hard-luck story hook, line and sinker.
HOOK, LINE AND SINKER
Meaning of HOOK, LINE AND SINKER in English
American idioms English vocabulary. Английский словарь американских идиом. 2012