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Try and avoid - the clue is in the name, when you fall for someone and it's unrequited, your heart is crushed.
Guy: Look, I'm really sorry, but it will never work out for us.
(Girl's heart crushes.)
by HappyGirl1993 October 23, 2010
one of the shortest loves you will find in your life, but easily the most intense love you will ever come across.

You will come across a few of these a year, usually 3 or more, but a real crush is when you are in love at first sight physically, and fall deep for that person emotionally afterwards, lasting for a very long time, not just a fake one week relationship. Both sides, in the end, will not come out perfectly and one person usually comes out extremely scarred emotionally, and it takes a while to get out of.
i started crushing on her at first sight, but i've been falling in and out of love with her the whole year
by matt jansing February 06, 2008
n. An immature (as in not developed) attraction to another person. Usually one of two kinds: the initial attraction you feel towards someone (love at first sight), or an attraction to someone who you won't get the chance to date, such as a celebrity. It can also be a young child's immature attraction to someone much older.
Synonyms: infatuation, puppy love

vb. To have a crush on someone.
Synonyms: like, desire
My best friend always made fun of my crush on that popular boy.
I was crushing on the star singer of a rock band.
by sakuraraine March 05, 2006
1. To pulverize, to destroy with force
2. A childish reference to someone you're in puppy love with.
3. Hopeless infatuation with a person.
"All my dreams have been crushed!"

"I have a crush on Jon; he is so cute!"
by Paresthesia November 23, 2005
If you have a crush on somebody it means that you have strong emotions towards them.

When you have been crushed that most likely means that the person that you like has found out about your liking them and they have rejected you.

Hence the reason why it is called a crush.
"Do you still have a crush on Jessica??"
by Tecoa April 27, 2007
The #1 cause of death, most commonly in teenagers. In other words, it means that you have some sort of maddening obsession over a boy or girl and you just CAN'T stop thinking about them. Oh, and you 'like' them. Lots. Like, 'like like'.
Donna had a crush on this boy down the street. He was your regular, cute, boy that seemed just perfect for her. The crush got so insane that she was starting to think she was having obsession problems and resorted to going to see a shrink.
by crotchetyteenager November 23, 2010
A desire to be with someone and make them happy, no matter what it takes.

In other words, painful.
I have a crush on that girl...
by Shoomkin October 25, 2009