jugline

As an adjective juglike

is resembling a jug (serving vessel) or some aspect of one.

As a noun jugline is

(fishing) a variety of trotline utilizing an empty jug (such as a bleach jug) as a float at one end of the line, the other end either free-floating or anchored with a weight.

As nouns the difference between juglone and jugline

is that juglone is an allelopathic aromatic compound found in the leaves, roots, husks, and bark of plants in the Juglandaceae family, particularly the black walnut, used as a colouring agent while jugline is a variety of trotline utilizing an empty jug (such as a bleach jug) as a float at one end of the line, the other end either free-floating or anchored with a weight.