“I have had a perfectly wonderful evening, but this wasn't it.”
— Groucho Marx
Simplified Meaning:
Sometimes, people use humor to lightly point out that they didn't enjoy a particular experience. When someone says they've had a perfect evening before, but not the one they're currently talking about, they are making a funny, polite way to say they didn't have a good time. Imagine you go to a party hoping to have fun, but nothing goes right - maybe the food is bad, the music is loud, and you don't know anyone. Instead of directly saying the party was awful, you could use humor to express your feelings without being too harsh. The idea is to soften the criticism and make it less hurtful. This kind of humor can help in social situations where being too direct might upset or offend others. By making a light joke, you communicate your feelings while still being polite and cordial.