Dirty German Words and Slang In any language you will find profanity that is defined as an offensive word or language. It is also known as strong language, bad language, strong language, coarse language, lewd, using expletives, swearing or cursing. In many times, it is a subset of the language that is considered to be generally impolite, rude or offensive. The strong language can be used to belittle someone or something or it may be generally used to show strong emotion. Profanity can be both a verbal or physical expression and is still considered a language.