spine-bashing

13 LETTERS · 2 SYLLABLES · STARTS WITH S

spine-bashing is a valid 13-letter word worth 20 points in Scrabble and 24 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1P3I1N1E1-0B3A1S1H4I1N1G2

1 + 3 + 1 + 1 + 1 + 0 + 3 + 1 + 1 + 4 + 1 + 1 + 2 =20 PTS

DOUBLE WORD → 40TRIPLE WORD → 60

MEANING

What does spine-bashing mean?