hussyfan is a keyword used in p2p systems by children who want to find pictures of people their age instead of looking at adult porn.
Boy1: Aww, this adult porn sucks, the chicks are as old as my mum...
Boy2: Hey, I have an idea! Let's look for some hussyfan instead!
Me: Fuck Yeah!! Little girls turn me on!
these words should be banned in p2p searches