Meaning of jack rabbit

jack' rab"bit

Pronunciation: [key]
  1. any of various large hares of western North America, having very long hind legs and long ears.

jack•rab•bit

Pronunciation: ( jak'rab"it), [key]
— adj.
  1. resembling a jack rabbit, as in suddenness or rapidity of movement: The car made a jackrabbit start when the traffic light turned green.
—v.i.
  1. to go or start forward with a rapid, sudden movement.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also: