As Hiruzen had broken Lambo's hold on his right hand, and Hiruzen had previosly taken hold of his right hand, Lambo uses the first body part that comes to mind; his left foot, Lambo shifts his right foot while moving his hips, and kicks with a his left foot towards Hiruzen's right shoulder, the kick won't do much damage it will only send Hiruzen to the ground, this is due to the awkward position Lambo is in, being slightly bent due to Hiruzen grabbing his right arm, and also him being pulled by Hiruzen. Despite this the kick will send Hiruzen to the ground. Afer that Lambo moves back a few steps.
-Note: While kicking Lambo pulled upwards with his right arm, so it will be released from your grip, I didn't know how to add it to the above in a clear way.