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A Bobby McFerrin Song....Written and recorded in 1988.....seven years after Marley's tragic death....anyone who thinks it's his song is retarded...
A great song....
by Sapphire March 14, 2004
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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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The phrase is often used as an ironic criticism of the attitude someone has about a worrisome issue.
"His attitude towards flood insurance was, 'Don't Worry, Be Happy.'"
by Blackmegabyte November 13, 2005
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