The phrase I believe you are referring to is to eat one's heart out, and it means that the person that is receiving this taunt has a reason to be extremely jealous or saddened by whatever has prompted the other person to say it.
For example, if I were to win a prize that someone else did not, I would tell them to eat their heart out because they will undoubtedly by jealous that I have won and sad because they wish they were the one who won.
It means pay close attention, or be prepared for something important to happen in the near future.
"Eat your heart out" is an idiomatic expression. There isn't another one that means the same thing.
You drink a lot
a person , place or a thing that has a special place in someones heart.
To know something by heart usually means by memory which would really be by brain.
what does it mean in English and i may be able to help you
it means perfectly what the phrase is!
having no heart rate. basically dying
For as he thinketh in his heart, so is he: Eat and drink, saith he to thee; but his heart is not with thee.
say what you want to say but say it from your heart and sholders means stay strong and brave.
When you keep something or someone close to your heart, you are making it important (and probably long-lasting) to you.
it means he is going to eat you.
There is no such phrase as "eat you".
it basically means 'don't take it personally'