Chinese film from the late 90s early 2000s

So my brother and I used to watch international films on TV and one that sticks out but I can't remember is from the late 90's early 2000's its about a man and women who live together who live in CHINA and they decide they want to get fat or gorge on food, they just continue to eat and eat and eat until they’re three times their size....
it’s a funny comedy with subtitles but it was a good film I just can’t think of what it’s called...
I think there might be a day in the name of film, as an example Fat Tuesday or something to that effect?