What does Elephant Zhenbai mean?

The elephant is really white, which comes from a slip of the tongue joke. It is said that it was a panic. I originally wanted to tell the truth, but ended up saying "the elephant is really white". Originally it was just a little joke, but later some people took it to mean that the truth was revealed, and it was passed down on the Internet.

Maybe your QQ friend originally had a lot of suspicions about you, but later he finally found out, or saw some of your photos or deeds, so he expressed his feelings.