The final opportunity to do or achieve something.
1. Last chance to get your application in before the deadline tomorrow at midnight. 2. This is your last chance to purchase tickets for the concert, as they are almost sold out.
1. "This is your last chance. After this, there is no turning back." Keanu Reeves, The Matrix 2. "It's your last chance to make a difference. It's your last chance to be the change." Demi Lovato, speech at the Democratic National Convention