User blog:Mgf60/Profanity in Vol.3 Chapter 151

When there is profanity in korean media then it is common for one of the hangul to be covered with an "X", which has happened several times in Tower of God so far.

The first profanity used is "악 X발!!" said by Lo Po Bia Ren to Androssi Zahard, which uncensored is "악 씨발!!" , with "씨발" being a slang word for sexual intercourse meaning "fuck" and "악" meaning "evil" in a literal sense, but when combined with "씨발" it is used more as an onomatopoeia "Oh...[]!!". When combined it creates the sentence "Oh fuck!!", something Line translated as "Holy shit!", which holds the same intention but is a less harsh swearword.

The profanity used is "고X" said by Lo Po Bia Shilial Zahard to Twenty-Fifth Baam, which uncensored is "고자", meaning Eunuch and is a crass way of calling someone impotent. The whole sentence is "..당신 혹시 고X 라든가 여자 라든가.", which becomes "..당신 혹시 고자 라든가 여자 라든가.", and it translates to "...Are you an eunuch or a woman?".