Shacking someone's chinn
With your hand .
Its usely
done by placing your hand very delicately on someone's chinn an then spontaneous schaking it around while using a lot of strength and momentum.
Not to be confused with a chinn lay where someone intensionally lays his or hers chinn in one's hand.
The other person
wil then shake it around and thank the person for overing his or hers
chin