don't buy green bananas

English

Refers to the time that it takes green bananas to ripen and be edible.

(humorous) Don't make long-term plans, as you may not live/survive long enough to accomplish them.
- 2010, Norman Molesko, Retiring and Senior Living...Experiencing the Second Half of Life:
  I don't buy green bananas anymore. I only buy one yellow banana, for I may not be around tomorrow.
- 2010, Susan Lynn Meyer, Skating with the Statue of Liberty:
  "I'm so old, I don't buy green bananas!" "Don't say that, Granma! You're not so old..."