See also: straw-line
- 1919  There are innumerable firms that have monopolized the services of the best hooker that ever gave signals for the high-rigger, while his short-handed crew changed the haul-back without the assistance of a grass-line.
2 n. a line of grass, sedge, etc. showing above ice and snow and marking the margin of a river, lake, etc.
- 1944  I make these sets as soon as the ice will carry me. I put them about three or four rods from shore, or beyond the grass line, and make them in pairs about six rods apart.