dying to (do something)
Eager and excited to do something. The kids were dying to go on another roller coaster. My 16-year-old is just dying to learn how to drive.
dying to do something
Fig. very eager to do something. I'm just dying to go sailing in your new boat. After a long hot day like this one, I'm just dying for a cool drink.
die to
Also, be dying to. Long greatly to do something, as in I'm dying to go to Alaska. [c. 1700] Also see die for.