Pillow-juji-gatame
(pillow cross armlock)

"I have called this variation "pillow -juji-gatame" because Tori's legs is underneath Uke's head like a pillow, while the right leg secures Uke's arm and head. By crossing his feet Tori secures Uke's upper body. To apply the armlock, Tori whose hips are turned towards Uke's head must fully extend the right arm from the shoulder ensuring that Uke's thumb is pointed towards the ceiling in order to make the arm lock when Tori pushes his hips forward."

Neil Adams
Armlocks