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1.
A motor racing circuit based in Northamptonshire, used mainly for F1.
It has been in the F1 Championship since it started in 1950, the only circuit to have achieved this feat.
Club corner is great to watch from!
by Sutton October 16, 2004
 
2.
A term describing any action that is a foul-bachelor-like decision, something extremely Neanderthal in nature, or anything that consists of being Lazy
Jason is such a Silverstone, instead of preparing himself a meal he just eats shredded cheese out of the package

Last night Marc forgot to shower, and used deodorant instead. He is such a Silverstone
by The Magical Chocolate Man January 10, 2012
 
3.
Michigan slang for:

1. Any individual who photographed deceased persons while they were still alive, and develops the film or images some time after their death.

2. A person who develops a deceased person's film some time after their death.

3. Anyone involved in post-mortem photography

Refers to the days of black and white silver-gelatin processing, melded with stone refers to being lifeless, like a deceased person, hence silverstone. A silverstone's pictures can be color or black and white.
When Harry's grandmother was still alive, he took pictures of her. She died a couple of months later. Right then Harry developed the film. Harry is now a Silverstone.

My friend Julian died a couple years ago. Today I just developed his roll of film. They photos of him making out with his girlfriend. I am now a Silverstone.

Chrissy is weird, Chrissy photographs dead people. Chrissy is a Silverstone.
by Raoul Clouse May 05, 2010
 
4.
When a celebrity has a no-nudity contract and uses body doubles for any nude scenes. Dervived from Alicia Silverstone who likes to cock tease but says she will never ever get naked.
Lamer Why wont that celeb do nude scenes?
Loser Cause she's a total Silverstone, dumb-ass.
by <insert> October 02, 2004