Translation of pus

I will add a feature to the dictionary builder tool, that marks a word as vulgar. The words that are shown in the tool are words that users did not find in our dictionary and a lot of them are vulgar.
Please explain me the exact differences between British and American .... This year I'm trying to make the TOEFL. We can then discuss how we can prepare for this exam. I failed the first time.
I will be doing my second year of studies abroad, probably in Panama. For that I will really want to learn Spanish. I know little about the Spanish language, but I will learn. I can help you with German.