Which is correct, flag or flog?

Set a flag. Flag is an English word. Its original meaning is flag. Set a flag because the flag will fall. That means you cannot casually say bad things that will happen in the future, otherwise it will really happen. will come true.

FLAG, originally meaning "flag" or "signal flag", is used here as "an ominous signal". This is a usage derived from the Internet. Flag, in game compilation, refers to the basis for judging a certain event, which is often a certain previous program code. This code is generally called Flag.

Other uses of flag

Anti-flag (anti-flag) (anti-flag): The same thing was said or the same thing was done, but the opposite of what was predicted happened.

Pull out the flag: Remove the conditions that trigger the event.

Recover flag (フラグ recovery); the event indicated by the flag occurs.

Example citation

For example, if you just said "The weather is good today" and then it rains, this is a flag.

For example, a boy told his roommate that he must chase the girl and would not give up until he achieved his goal, but he received a good guy card.