Kote gaeshi (小手返し)

Kote: back of the hand.
Gaeshi: twist, outward torsion.
Morihiro Saito
Te means hand and ko back. Kote gaeshi is a throwing technique – or immobilization – by twisting the wrist.
 
In omote, we perform a downward wrist twist. We point our hips outward to maintain comfortable pressure and avoid invading uke's space. We continue to quickly lower our wrists to achieve our partner's throw.
If we focus our attention solely on the twist, we'll run into problems. It may happen that uke doesn't land even if we increase the pressure on his wrist. Perhaps we haven't lowered his wrist far enough toward the ground, or our position relative to him is poor; then uke will be in control of the moment.
 
But if we control our position relative to his at all times, when we go down – even if the wrist twist is slight – we can get him to be thrown.