The plant, a vine of genus Vitis, on which grapes grow.
Although many grape vines have geographical names, those rarely reflect their real origin, if known at all.
A rumor.
An informal person-to-person means of circulating information or gossip.
I heard through the grapevine that Jim will be leaving soon.
A move in which the feet are alternately placed in front of each other, while both remaining on the ice or ground, incorporating half-turns.
A leglock.