Talk:Korosensei/@comment-175.140.193.59-20150302153015/@comment-5707992-20150406184414

I already said this in another comment thread, but what makes Korosensei's name mean "unkillable teacher" is the fact that they combined "Korosenai" (unkillable or unable to kill) and "sensei" (teacher) by replacing the "nai" (ない) with "nsei" (んせー) which would spell out to be "sensei." It acts as a homophone to the actual characters for sensei (先生) and makes the entire thing a pun that means "unkillable teacher."