driving bit

11 LETTERS · STARTS WITH D

driving bit is a valid 11-letter word worth 17 points in Scrabble and 21 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

D2R1I1V4I1N1G2B3I1T1

2 + 1 + 1 + 4 + 1 + 1 + 2 + 0 + 3 + 1 + 1 =17 PTS

DOUBLE WORD → 34TRIPLE WORD → 51

MEANING

What does driving bit mean?