Irrrrrrr........ I can't take it anymore!!!!

AAAAUGHHHH!!!!

I've heard it all day today, and then I get home, turn on the news and hear someone interviewed spew it from their mouths..... IRRRRR-REGARDLESS.
That's not a word... if it's a word, what the %$%@# does REGARDLESS mean?!

Do people think you can just IR in front of anything and it's correct?

Here's a thought. A fun game might be to drop IR in front of some other word and use in conversation with people. Let's see how tolerant people are when I make up words. So far I can come up with irrapidly... any help will be appreciated.