Question: I often say something like:

> 
> This soup is pretty damn spicy!
> 
> 
> 

I am wondering now if this is actually proper grammar.

On [Urban Dictionary](https://www.urbandictionary.com/define.php?term=pretty%20damn), it says the meaning of it is *“approximately”*, but when I use this term I don’t use it for “approximately”. Like the above example, I used it for saying “pretty spicy” or something like “actually pretty spicy”. I hope you get the way I use that term.

But still, I am wondering if that is proper or not.

I am also wondering if this is maybe too dirty language, so you can also say whether I should often say this or not.

Answer: 
What is "proper" is really opinion-based. Some people find "damn" offensive, while many do not.

What I can say is that it is not polite and would not be used in a formal setting. You might say it to people you know well, but probably wouldn't say it at a job interview.

Again, what is "dirty" is opinion-based. Many people divide curse words, or swear words, into the categories of just plain offensive (for example, scatological terms), and sexual (for example, the 'F' word, or slang terms for genitalia). It is the latter that people normally think of as 'dirty' language. 'Damn' originally had religious connotations - it means to condemn to hell - so it doesn't have any sexual connotations. If people do find it offensive it is likely because of the original religious meaning, although these days, it is just used as an *intensifier*, as it is in your example.
Some people find "damn" offensive, and some do not.

You should use in a conversation or not important situations, but not important situations. As I said, some people find damn offensive, so you shouldn't use it at a new person you met. Because you don't know the person will find "damn" offensive or not.

So this is not that offensive (as F-word), but (It's still a bit dirty) you should use this word carefully.