hook line and sinker

1. 1.

   in every detail

   “he believed her story hook, line, and sinker”

Questions about hook line and sinker

What does hook line and sinker mean?

hook line and sinker means "in every detail".

Is hook line and sinker a common word?

hook line and sinker is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.