"Baby fish mouth!"

I was emailing a friend the other day and, trying to describe someone we both know, I used the word "asshat." For this particular person, it was the most appropriate word I could come up with. I knew I'd seen it before, but I wasn't sure I was using it correctly. And since it was so colorful, I wanted to make sure that mine was the appropriate usage. Now, it doesn't have a listing in the Oxford English Dictionary, and Webster's doesn't seem to think it's a word, but once again, the internet's Urban Dictionary came through for me. I'll let you look it up yourselves.