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When a girl is giving the guy head and then he pull his dick out, throws her on the bed and sprays water on her as he comes creating a white colored rainbow.
Yea last night I showed that girl the first white rainbow shes seen ever
by deez balls November 18, 2006
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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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