Definitions for "Log line"
One-line description of a story, like those that appear regularly in TV Guide, aimed at making someone want to watch it--telling the reader what this story is about.
short one sentence description of the story in a script or book or for an idea.
a very short one to two sentence description of your script's story
Keywords:  reel, knotted, cord, attached, wood
a knotted cord that runs out from a reel to a piece of wood that is attached to it
A graduated line used to measure the speed of a vessel through the water or to measure the velocity of the current from a vessel at anchor. See current line.