Watching the video carefully, you can see a lady with a huge backside standing in front of a provision store.
This lady was buying something from the store the owner was going to take it for her. In the course of waiting for the store owner, the small boy came in and stood behind this lady. He was seen using his hands to create an impression that the lady is having a huge buttock.
This is a lady who is old enough to be his mother. The storekeeper noticed that the small boy is doing behind the lady and told her. Not knowing there somebody standing somewhere recording what the small boy is doing. The lady turned around, held the cloth of the boy, and beat him.
See photos below;
