Any object of spurious nature, somewhere where it is not supposed to be.
Dog poo on your shoe would be considered to be a stillen.
by Cyrus Darawalla February 18, 2004
Steve Millen modified parts for Nissan and he named the parts "STILLEN" parts.
I have a STILLEN Designed & Built Custom Chromoly Roll Cage in my car!
by Rockys Girl September 13, 2009