Sode-guruma
(sleeve wheel)

"Uke is seated on the ground and Tori, upright behind him applies his right knee to Uke's right shoulder blade.Tori with his left hand grasps Uke's left lapel as near as possible to Uke's left ear, the thumb outside. His left forearm is therefore coiled round Uke's throat, with the radial edge in front and on the right of Uke's neck
Meanwhile Tori's right hand seizes the fabric of Uke's jacket in front of his left deltoid, and Tori's right forearm blocks the nape of Uke's neck against it's cubital edge (the ulna). It then remains for Tori only to effect a pincers movement with his forearms."