Amfibius = amphibious. Refers to my love for watersports. Got called an amphibian by some of my friends when I could swim the length of a 50m pool underwater (can't do that any more though!). My first email account I signed up for had a maximum of 8 characters allowed, so I corrupted the spelling to make it fit . Have used the same nick for all the forums I visit since (Overclockers Australia, Fred Miranda, Rob Galbraith) as well as websites (my pbase, ebay) and so on
What about you?