The phrase "cashes in one's chips" typically refers to someone dying or passing away. Antonyms for this phrase would include "living life to the fullest", "being alive and well", and "enjoying a long and healthy life". These phrases convey the opposite of the idea of dying or passing away, and instead emphasize the importance of living life in a positive, fulfilling way. Other antonyms might include "surviving", "thriving", "flourishing", and "persevering". Together, these terms describe the opposite of the finality inherent in "cashing in one's chips", emphasizing instead the ongoing nature of life and the importance of making the most of it while we can.