How Does a Word Become a Curse Word?
you just say it is
people use it in a bad context enough.......1Direction is gonna be the next swe@r word
its all on how you use it
Like Gator said, it's used in a bad context over and over again. It could also be just used as a subsitute for a word angrily, it might become assumed that it's a swear word
Like I bl00dy know you bl00dy f00l, f u j3rk hahaha just kidding :P
Like when you say he'll(you just remove the ' and it becomes a swear word) it means you cursed. Or when you say curses.
I think it's the context that you use it in is how they became cuss words.I surprised people haven't used the name 'Justin Bieber' as the new word for B****.