blumpkinのようなどんな単語でも探してください。
 
1.
A response to a question about something that was done for reasons only apparent to person who did it and which could only be understood by them.

Usually encountered while playing FPS games.
"Why did you just stab your teamate in the back?"
"It had to be done"
Fistyによって 2005年11月05日(土)

Words related to it had to be done

cs do the deed senseless stab