C stole the tower.

source: one argument is that someone mistook "stupid bird" for "dish", and later the word "rookie" was ridiculed and widely used to despise Xiaobai (this article is really far-fetched).

Another way of saying this is that a rookie originated from the NBA, which is called a rookie who just joined the NBA. That is to say, it takes a process for someone to join a team or accept new things. A person at this stage of the process is called a rookie.

There is a slight mention in Shandong dialect of Henan Province that a rookie is as famous as a fool, or a fool comes first, and then a rookie is derived. In doubt. Food, in two places, is also equivalent to stupidity.

rookie supplement:

Laoniao, that is, the network name corresponding to rookie, refers to a person with a higher level in a certain respect (generally referring to computer-related). Usually these people have relatively perfect professional knowledge and rich experience.

prawn, a homophonic hero, describes a network expert. The English equivalent word is knowbie, which means a knowledgeable and experienced Internet user. It is worth mentioning that these two groups of words have a relatively consistent correlation in their respective languages, and the banter elements of "rookie" and "prawn" in Chinese are heavier.

In the past, it was mostly expressed in words and widely circulated in spoken English. However, English has few syllables of "newbie" and "knowbie", which are easy to pronounce and remember in spoken English. The meaning can be extended to other occasions outside the Internet, which has a broad mass base and has appeared in major official media.

above content reference: Baidu Encyclopedia-Rookie