shoot a line

VERB
12 LETTERS · STARTS WITH S

shoot a line is a valid 12-letter word worth 13 points in Scrabble and 14 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
S1H4O1O1T1A1L1I1N1E1
1 + 4 + 1 + 1 + 1 + 0 + 1 + 0 + 1 + 1 + 1 + 1 =13 PTS
DOUBLE WORD → 26TRIPLE WORD → 39
MEANING

What does shoot a line mean?