"Fietser" is Dutch for bicyclist.
JT told me of a similar sounding word in American slang: "Fiester". Per Urban Dictionary, definition of Fiester is: "A man who is beyond cool; a man who women want to sleep with and men want to be." (I am NOT making this up!)
I'm cool and all that, but really... this blog is Footloose FIETSER.
(For the adventures of a footloose fiester, try the Jack Reacher novels. He's a guy who really travels light: "... foldable toothbrush and an expired passport." Not great literature, but fun.)