jack-tar

NOUN /dʒæk'tɑr/
8 LETTERS · STARTS WITH J

jack-tar is a valid 8-letter word worth 20 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
J8A1C3K5-0T1A1R1
8 + 1 + 3 + 5 + 0 + 1 + 1 + 1 =20 PTS
DOUBLE WORD → 40TRIPLE WORD → 60
MEANING

What does jack-tar mean?