I'll eat your heart out - I’ll eat your heart out is like saying I’m gonna turn you in

I’ll eat your heart out is like saying I’m gonna turn you into a snack and laugh while I do it.

I said I’ll eat your heart out to my dad when he yelled at me for being late.

My friend said I’ll eat your heart out after I beat him at chess.

I told my neighbor I’ll eat your heart out when he parked in my driveway.