Wabble

·noun A hobbling, unequal motion, as of a wheel unevenly hung; a staggering to and fro.

II. Wabble ·vi To move staggeringly or unsteadily from one side to the other; to Vacillate; to move the manner of a rotating disk when the axis of rotation is inclined to that of the disk;

— said of a turning or whirling body; as, a top wabbles; a buzz saw wabbles.