Undercut

удар отдолу

udar otdolu

(blow dealt upward)

филе

file

(underside of a sirloin of beef)

подбивам

podbivam

(to sell at a lower price than a competitor)

подрязвам

podrjazvam

(to create an overhang by cutting away material from underneath)

удрям отдолу

udrjam otdolu

(to strike a heavy blow upward)