What is indian rug burn?

An Indian rug burn, also known as an Indian burn or Chinese burn, is a harmless but slightly painful prank in which one person twists the skin on another person's arm in opposite directions with both hands. This action causes friction and a burning sensation similar to the feeling of rug burn. It is usually done in jest among friends or siblings and is not intended to cause harm. Nevertheless, some people may find it uncomfortable or irritating. It is important to note that intentionally causing harm or pain to someone, even in a joking manner, is not appropriate behavior.