The point of cussing is to add emotional color. Remember that and don't judge people who cuss in a cool way. They don't judge you for being dry or uptight. As an example of how useful cussing can be, imagine that you want to critisize your manager for being unpersonable. Calling him fuckface, a dick, an asshole, to his face would help. If you can't do it, there likely a huge problem in your relationships, or it simply isn't your communication style. But if it is and you can do it, it has power. Good vibes when critisizing.

Now I overthink this whole thing and went too deep in my comments, failing to do it fluently. I still belive cussing is an important tool in communication, and if it is frowned upon to cuss in a room, then I doubt it is a room filled with winners. They are concerned with superficial instead of essential and lack emotional intelligence.