lubber's line

NOUN
13 LETTERS · STARTS WITH L

lubber's line is a valid 13-letter word worth 15 points in Scrabble and 21 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
L1U1B3B3E1R1'0S1L1I1N1E1
1 + 1 + 3 + 3 + 1 + 1 + 0 + 1 + 0 + 1 + 1 + 1 + 1 =15 PTS
DOUBLE WORD → 30TRIPLE WORD → 45
MEANING

What does lubber's line mean?

NOUN · 1 SENSE
1

A fixed line on a ship's compass indicating its heading.