rub along

VERB
9 LETTERS · 2 SYLLABLES · STARTS WITH R

rub along is a valid 9-letter word worth 11 points in Scrabble and 16 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
R1U1B3A1L1O1N1G2
1 + 1 + 3 + 0 + 1 + 1 + 1 + 1 + 2 =11 PTS
DOUBLE WORD → 22TRIPLE WORD → 33
MEANING

What does rub along mean?