Bad words

[The truth is that it is best not to use them at all as a learner. Their use varies by region and context with which you have a very limited experiential base. As a learner, you grow again as a child, it doesn't matter if you are 99 years old. So to use them as a foreigner can be very insulting to a native, in the same way as a child using them is. It is surprising, unexpected, and unwelcome.]

Bad words

Why are bad words are the easiest things words to learn on in a new language and you don't the hardest to forget? I don't know, but it's important to learn them. There are days that you just want to say "go to h@#$." I don't need to say the last word, because you already know the meaning. Maybe this is the most polite way to say it in English; I don't know.

Hi Graziela! "Go to h@#$%" is definitely not the most polite way to say anything in English, but I think I understand what you mean. As for your question, I don't know why foul language is so easy to remember. Maybe it's just so strong that it forces its way into our minds...