The term 'On the Dark Side' can be summarized by two words: 'DIM' and 'GRIM'. DIM means not bright or lacking in intensity, while GRIM means having a harsh or dismal atmosphere. This phrase is often used to describe a situation that is not pleasant or desirable, such as a dark and depressing place or a difficult and challenging task. It can also refer to a person's outlook on life, suggesting that they are pessimistic and have a negative attitude.