It's easy to say sanji ~ Zoro, it's vague, just nonsense, put words "Sanji" and "Zoro" together and add an "=" or "~" in the middle.
Trying saying:
Sanji can seriously hurt and permanently damage Kaido after holding off the strongest attack in the series yet, Hakai, for almost dozens seconds , and not be obliterated. It's the same thing as saying Sanji = Zoro, just one shows you better how ridiculous it sounds.