Well I can say with confidence that most of you ladies are far more proper than I or my family. Now I fully recognize there's a time and place for everything, and I strive to make sure my daughter knows what words and actions are only for when family is around. That being said, we giggle like school girls about potty humor. My daughter and I regular challenge each other with certain "contests" that I'm sure would make most of you cringe. (My dh doesn't participate, not because he thinks it's improper, but because he's a lightweight. He simply can't compete.)
I love fun little catch phrases like "My bad" and "I know, right?" And I love a good play on words. For me, the key is to not overuse them. It's all about proper time, proper place.
So what words do I despise? As I said in the other thread, irregardless makes me shudder. Preventive bothers me. I always thought it was preventative. When did it become preventive? Curricula when used as a singular noun. And march. There's something about the "r" sound merged with "ch" that bothers me. Or when merged with a "j" sound, like large. My mouth doesn't like making those combinations.