The Chinese word "脑袋" is formed by combining the character 脑, meaning "brain", with 袋, meaning "bag" or "sack", resulting in a literal compound that translates to "brain bag". This construction metaphorically depicts the head as a container holding the brain, using imagery to convey the concept of the head through descriptive, tangible terms. It exemplifies how Chinese often creates words by pairing characters where one denotes the core element and the other adds a figurative or functional layer, enabling intuitive understanding through everyday objects.