MOFO me

I was looking through at the sites that link to "Cup of Ice", when I saw this link.

Well, some one went up to Yahoo to search for what mofo stands for and my entry ranks up as Search Result No. 2.

Special thanks to the ingrate for putting "Cup of Ice" on the Google list.

Oh, I was being sarcastic, by the way. ^_^

So what was the MOFO that guy was searching for?
Show me your creative err... juices.