In the 2010 film "Easy A", there is an exchange between several characters:
Rhiannon: George is not a sexy name. George is like what you name your teddy bear, not the name you wanna scream out during climax.
Mr. Griffith: I hope by "climax" you weren't talking about...
Olive Penderghast: The stable and self-perpetuating end-stage in the evolution of a plant community. Like "by George, that tree has reached the final stage of ecological succession".
Rhiannon: And it only took 20 seconds.
What does Olive mean here by "The stable and self-perpetuating end stage in the evolution of a plant community."?
Please note: English is not my native language, so the simpler and clearer you can make your explanation, the better.