What does ponyboy mean when he says soda gets jrunk on just plain living?

When Ponyboy says that Soda gets "drunk on just plain living," he means that Soda finds joy and fulfillment in the simple pleasures of life, rather than needing substances or alcohol to feel happy. Soda has an optimistic and carefree attitude, appreciating everyday moments and experiences. This reflects his character as someone who embraces life wholeheartedly, showcasing the theme of finding happiness in the ordinary.