体无完肤 tǐwúwánfū
(1) [have cuts and bruises all over the body;be a mass of bruises]∶全身没有一块好皮肤。形容浑身受伤
(2) [be thoroughly refuted;be refuted to the last point]∶比喻论点被彻底驳倒或文章被大量删改