A crush, though defined as just a fickle liking of someone, is much more. It can be a full throttle passion for someone, an all around obsession. The definition of a crush cannot nearly be defined as a fantasy of dating a certain someone, but also can be defined in the finest detail. Details such as the fact that just a smile can light up your whole entire night or that because he loves the color red, you tend to wear red over any other color. Things such as "accidentally" bumping into him in the hallway on your way to math class.