-Noun or Verb shad-oh strohk
Receiving a handjob from an unseen hand or through methods such as The Stranger, where the hand is applied to the receiving member through unconventional angles and/or methods.
I was fast asleep and was awaken by an unseen shadowstroke as my fiance has carefully stuck her hand up my boxers and awoke me to the wonderful surprise of a shadowstroking alarm clock.
A person who hates shadow the hedgehog, still gets called shadow... despite hating everything to do with that name. Also hates Twilight and thinks that Pedophilia and Necrophilia definitely don't mix.
Also a name for a redhead guy who lives a vampiric lifestyle, yet doesn't call himself a vampire or goth or any other dark name, but admits he is dark and slightly masochistic.
Bob: Hey! Look! It's a Daywalker!
Joe: No... You're wrong, that's a Shadowstorm. You can easily tell because he has that anti-twilight shirt.