I don't know about you, but some words and phrases are so overused I cringe when I hear them. Words that don't mean anything in the context of their usage; words that stall for time; words that indicate the speaker is uninformed on the subject at hand. Laziness, conversationally speaking.
This is not a complete list. Other lists abound, but here are some of the expressions and utterances I hear and read that are trite and overused and personally annoy me:
Whatever - a conversation killer.
Like - a perfectly good word when used properly, as in "I like apples," but most annonying when inserted into sentences constantly, as in "I, like, drove to the mall today and, like, the traffic was, like, horrible."
You Know - same usage pattern as "like" above.
Seriously? - of course I'm serious. Why else would I say it?
At the end of the day - this is probably the one I'm most tired of. A favorite of politicians stalling for time to provide answers to questions asked of them.
Totally - what can I say about this one? Reminds me of bouncy teenage girls effusing about anything/everything.
Cool - can't you think of a better response?
Awesome - see "cool" above.
Just 'sayin - slang that was fine for a while but has become much overused.
That's my list. I know I've failed to include many so please add your favorites in the comments below.