What is Silicone Valley?
1.
the area between two breast implants.
Look at that chick's ugly tattoo in her silicone valley!
See
2.
Cleavage canyon, the area on the chest between the tits.
"That's a boob job, just look at the silicone valley."
3.
a girl who had a major and obvious boob job.
OMG Angela is so fake! Look at her new silicone valley!
See
