What does rotten Lanzhou mean?

Rotten Lanzhou means to scold the landlord for being rotten. Network language. In the network language, Lanzhou is always mentioned by everyone. Lanzhou is LZ, which means the landlord (pinyin Lá nzh! U and LóuZhǔ incarnation can be abbreviated as LZ). When typing with pinyin input method, usually as long as LZ is input, the words Lanzhou will be displayed first. Over time, Lanzhou has become a variant of the forum or post bar.