Irregardless - This word means EXTRA regardless to some people.
Mischievious - The more vowels the merrier, right? From now on let's all say mischievaeiouys.
I Could Care Less - This is not a word but a phrase, of course, but it's up there near the top of my favorite things to hear people say. If you could care less, then by all means, be my guest and care less. Maybe then I wouldn't have to hear you talk about it anymore.
Up your nose with a rubber hose - Another phrase. I am so sick and tired of people telling me this. Especially every one of you reading this blog! Stop saying that! It's so childish. Yes, I'm talking to you!
Newt Gingrich - What does that even mean?!