knuckle line

12 LETTERS · STARTS WITH K

knuckle line is a valid 12-letter word worth 21 points in Scrabble and 27 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

K5N1U1C3K5L1E1L1I1N1E1

5 + 1 + 1 + 3 + 5 + 1 + 1 + 0 + 1 + 1 + 1 + 1 =21 PTS

DOUBLE WORD → 42TRIPLE WORD → 63

MEANING

What does knuckle line mean?