undercut

undercut - noun

the material removed by a cut made underneath

the tender meat of the loin muscle on each side of the vertebral column

a notch cut in the trunk of tree in order to determine the direction of its fall

(sports) a stroke that puts reverse spin on the ball

a cut made underneath to remove material

undercut - verb

sell cheaper than one's competition
cut away material from the underside of (an object) so as to leave an overhanging portion in relief
cut away the underpart of
strike (the ball) in golf, tennis, or hockey obliquely downward so as to give a backspin or elevation to the shot
cut obliquely into (a tree) below the main cut and on the side toward which the tree will fall

undercut - thesaurus