bailer noun4 •One who bails or lades. •A utensil, as a bucket or cup, used in bailing; a machine for bailing water out of a pit.[…] he had them help him fashion a mast from the sweep and attach wire stays to it and tear the jib to the shape he desired and make a bailer from canvas and wire and bent wood. — 1938 •(old-fashioned) A delivery that heads towards the bails after pitching. •(old-fashioned) A delivery in which the ball hits one or both bails but does not dislodge them. formsbailers