What is the name of the woman's bending action in tango?

That's a step in the gold medal routine, which is very similar to the leg-clamping of cha-cha-cha, so it's called chuck. Boys will do leg-clamping movements to send girls out ~ girls will put their right feet on the ground and send their bodies out. It seems that she bends down, but in fact she will send her body out with the support of boys, and her waist will be resisted.