last piece of cheesecake
Wishing you knew when the end of the world is so you could have that last piece of cheesecake. In a more general sense the desire to do anything you generally deny yourself when it won't matter any longer to be thin, or rich, or whatever because the world is going to end.
I wish I knew when the world would end because then I would have that last piece of cheesecake.
Last piece of cheesecake
If you are willing to share your last piece of cheesecake with someone,You love that person!
I like him enough to share my last piece of cheesecake..(meaning I love him)