Bolshoi Bends is a figure skating move that involves a skater bending their body in a large arch while spinning. It is named after the Bolshoi Ballet, a famous Russian ballet company. The term 'plies' is used to describe the bending of the legs during this move. Plies are a basic ballet move that involve bending the knees and ankles while keeping the back straight. This move is essential for performing the Bolshoi Bends.