To dream that you are crushing something, indicates that you are under a lot of stress and pressure over an important decision that you need to make.

To dream that you have a crush on somebody, is a reflection of your attraction to that person in real life.

To dream that somebody has a crush on you, represents your own sense of worthiness and esteem.

To dream of crushing on someone you've never met in real life, signifies your longing for a true love.