shrink rule

11 LETTERS · STARTS WITH S

shrink rule is a valid 11-letter word worth 17 points in Scrabble and 19 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1H4R1I1N1K5R1U1L1E1

1 + 4 + 1 + 1 + 1 + 5 + 0 + 1 + 1 + 1 + 1 =17 PTS

DOUBLE WORD → 34TRIPLE WORD → 51

MEANING

What does shrink rule mean?