吃货
Chīhuò
People use this to describe someone who loves to eat in a fanatic way (but not psychologically unhealthy) and they find that somewhat adorable. It is very rarely used in assaults.
However, its original meaning was meant to say that you are obsessed with food and only knows how to eat and not anything else. But with the advert of the internet and society's advancement, it has now evolved into a way to praise food critics and their understanding of what food is good.
他是一个资深吃货。
Tā shì yī ge zī shēn chī huò.
This translates to: He is a serious foodie.