What does it mean to have a New Year flag?

It means setting a goal related to the new year.

Flag is a popular word on the internet, which means to say an exciting sentence or set a goal to be achieved.

FLAG, which means "flag" and "signal flag", is used as "ominous signal" here, which is derived from the usage of the network. Flag, in game compilation, refers to the basis for judging an event, which is often the previous program code, generally called Flag.

Contradictory usage

Under the use of different people, the meanings of "raising the flag" and the corresponding "lowering the flag" are opposite. For example, the person who sets target X is considered to have set a flag.

In some people's usage, this person succeeded in achieving goal X and fell for the "flag".

In some people's usage, this person failed in the process of achieving goal X, and falling is a "flag".