A soft bait fish lure includes an elongated body having a head and a rear along a longitudinal axis. The body tapers laterally to a reduced tail portion toward the rear, then flares laterally into an enlarged tail at the rear. Optionally, the reduced tail portion is flexible in a lateral direction. The enlarged tail may have a tapered top and tapered bottom, each formed from two intersecting faces, such that the enlarged tail forms a substantial diamond-shape in cross-section perpendicular to the longitudinal axis. Optionally, each of the faces includes a contour terminating in an edge proximate said rear such that fluid flowing over said enlarged tail forms a vortex at each said face. Optionally, the rear forms a distal surface including a lateral indentation at the intersection of the tapered top and tapered bottom.