真香

Meaning

"Zhenxiang (So delicious)" originates from the TV show "X-Change" where protagonist Wang Jingze declared upon arriving in the countryside: "I'm Wang Jingze. I'd rather starve, die outside, or jump from here than eat any of your food!" But he ended up eating and exclaiming "So good!" Now used to describe behavior where attitudes/views completely reverse, essentially slapping your own face.