Akushu Ude Tori is a Yawara technique in Danzan Ryu Jujitsu.
Technique Description
Uke (attacker) grabs Tori's (defender's) as in a handshake. Tori pulls Uke off balance and encircles Tori's arm at the elbow, lifting up against the back of Uke's elbow to lock it.[1]