What is Pavarotti's split?

The meaning of this stalk:

Parroty is an Italian tenor, with a relatively fat figure. It seems almost impossible to split his waist, so there will be such a passage in Feng Gong's joke.

The source of this stalk:

The lines in the crosstalk between Feng Gong and Zhu Jun compare their own strengths with others' weaknesses, and I beat him to death!

I'll compare Pan Changjiang, Peisi Chen's hairdressing and the American president's speaking Chinese. I'm better than him!

another one seems to be a split for Pavarotti!

Usage of this stalk:

I unconsciously have to compare myself with others, and unconsciously I am inferior to others. People have to die than others, and goods have to be thrown away. The pain comes from comparison.

The result of comparison is that I feel inferior. I am inferior to anyone. I am too difficult!

It reminds me of the lines in the crosstalk between Feng Gong and Zhu Jun. I compare my own strengths with others' weaknesses, and I am better than him!

I'll compare Pan Changjiang, Peisi Chen's hairdressing and the American president's speaking Chinese. I'm better than him!

another one seems to be a split for Pavarotti! I've heard it many times. I wonder if it's this word? I checked Pavarotti's life again, but I can't feel the meaning of this sentence?

I had to write three sentences, but I could also compare happiness, and I secretly smiled.