Ude-hishigi-ude-gatame
(knee armlock or arm-crush)

"With uke lying on his right side kneel beside him, facing his chest, while he holds your right lapel with his left hand. Cup both hands or inter-locked fingers, around his left elbow, ensuring that his arm remains fully straightened , with his hand against the right side of your shoulder and neck.
To operate the lock, pull Uke's arm with both hands from a possition just below the elbow, towards you and slightly upwards."