|1.||eat your heart out|
A declaration, often exaggerated, joking and boastful, of being better than another person, the aforementioned often being a celebrity or historical figure.
"Mozart, eat your heart out!" said the organ player after a successful concert.
|2.||eat your heart out|
eart your heart out directly translates to: screw you, bitch. You hurt me more than anyone could.
Person A: I think you are a horrible person and I can't believe what you did.
Person B: Eat your heart out whore!