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Nickname for the San Fernando Valley in California, known for having a lot of porn studios.
I moved to the Silicone Valley with my rubber tits to pursue a career as a porn star. After starring in over 200 creampie gangbangs, I upgraded my tits and ass from rubber to Silicone. I get even more, and higher quality, dicks in my pussy.
by Chestnut & Hazel April 09, 2019
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Sep 11 Word of the Day
when you're hungover as shit after a spending a night drunk as a skunk
I'm hungover as a duck let's go get some grub
by pokeythepony June 25, 2021
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4
{Jack and John staring at a giant cleavage}

Joe: damn..! look at that cleavage! Never seen something that huge,.
John: Yeah I'm pretty sure that'll open up to be a silicone valley..
by jt95 October 04, 2014
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5
a girl who had a major and obvious boob job.
OMG Angela is so fake! Look at her new silicone valley!
by sourban May 16, 2008
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6
The cleavage that is a result of breast implants and poor choices of blouses.
Her cleavage was referred to as her ‘Silicone Valley’... because of its ‘inception’ created after breast augmentation.
by Major Thomas February 07, 2018
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