A fish hook and line weighted with lead for dragging below the surface of the water.
- ‘I clinch knot a 3oz. drail to my 25lb line.’
- ‘The only variation to this rig might be an increase or a decrease in drail weight to match the current conditions and water depth.’
Late 16th century (denoting part of a plough): from the obsolete verb drail, an alteration of trail.