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A period in a persons life, usually during high school, college and/or unemployment, spent mostly under the influence of marijuana.
His sophomore year in college was a real stone age. People called him and his roommate 'Fred and Barney'.
by spaa August 07, 2010
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Nov 27 Word of the Day
A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.
That fucking smooth brain put his shirt on backwards again...

That smooth brain is dumber than a pile of shit.
by Tip Tank May 14, 2011
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2
DAMN musta been great...
The Stone Age
Speaker 1: Hehheehhehehehehehehheehehhehhehe........
Speaker 2: huh? he......hehehe........hehehehhehehhhehehehe
by rrlloo1 October 29, 2010
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3
The age when people walked everywhere and didn't remove trees from the forest.
We're all doomed.
by R to the Nazi October 21, 2003
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5
A limited reference to a persons inability to understand simple topics.
"The effects of quantum mechanics are typically not observable on macroscopic scales, but become evident at the atomic and subatomic level. There are however exceptions to this rule such as superfluidity." reply "Ye Stone-Age"

"Simmer on low for 10 minutes" reply "Stone age?"
by collins92 July 22, 2008
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