hook line and sinker

20 LETTERS · STARTS WITH H

hook line and sinker is a valid 20-letter word worth 29 points in Scrabble and 32 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
H4O1O1K5L1I1N1E1A1N1D2S1I1N1K5E1R1
4 + 1 + 1 + 5 + 0 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 2 + 0 + 1 + 1 + 1 + 5 + 1 + 1 =29 PTS
DOUBLE WORD → 58TRIPLE WORD → 87
MEANING

What does hook line and sinker mean?

1