I'm a sped teacher, I sit in a LOT of professional meetings around conference tables talking about serious subjects.
Here's what I can't stand - when people make up words!! Or use the wrong word.
The latest one is "flustrated"

that is not a word! It's fRustrated. Now I'm frustrated.
Care to share other words you've heard slaughtered? or made up?
yes, yes, I know, this from the person who couldn't spell her own screen name right...