Definitions for "Bluch"
A move starting on the stomach, a complete Side Somersault, landing again on the stomach, more usually called "Turntable". Named after Jim Blutch (pronounced Blootsh) who "invented" the move during the 1940's and the skill carried his name until about 1955.
Keywords:  backwards, drop, twist, rotation, half
From front drop, 180° backwards rotation with half twist, to land on front.