log runner

10 LETTERS · STARTS WITH L

log runner is a valid 10-letter word worth 10 points in Scrabble and 15 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

L1O1G2R1U1N1N1E1R1

1 + 1 + 2 + 0 + 1 + 1 + 1 + 1 + 1 + 1 =10 PTS

DOUBLE WORD → 20TRIPLE WORD → 30

MEANING

What does log runner mean?