Fajita has a fun post on the Top 10 Irritating Phrases Unmasked. I like that he adds his own explanation as to why each phrase is irritating.
What would happen to communication in the workplace if we eliminated some of these gems from our daily language? I (note I didn't say "I personally"!) would be okay if we all lost the following:
2 - Fairly unique - There is absolutely nothing in the world just like this one, except there are a few things that are pretty much just like it, but they are few in number.
5 - With all due respect - I do not respect you nor do I believe you are due any respect.
7 - It's a nightmare- (Usually accompanied with an overly dramatic eye roll). It was bad, but I have limited vocabulary, and I want to try to get you to say "Oh my God,," or better yet, "OMG." (If the responder DOES give in with an OMG, then the manipulation was successful).
8 - Shouldn't of - I messed up and don't read much.
Check out the full posting here.