belt along

VERB
10 LETTERS · STARTS WITH B

belt along is a valid 10-letter word worth 12 points in Scrabble and 17 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
B3E1L1T1A1L1O1N1G2
3 + 1 + 1 + 1 + 0 + 1 + 1 + 1 + 1 + 2 =12 PTS
DOUBLE WORD → 24TRIPLE WORD → 36
MEANING

What does belt along mean?