pin block

9 LETTERS · STARTS WITH P

pin block is a valid 9-letter word worth 18 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

P3I1N1B3L1O1C3K5

3 + 1 + 1 + 0 + 3 + 1 + 1 + 3 + 5 =18 PTS

DOUBLE WORD → 36TRIPLE WORD → 54

MEANING

What does pin block mean?