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The term refers to the the phenomenon of one's face muscles inexplicably contorting upon hearing an extremely metal riff. It is uncontrolable, many have researched it but it remains a mystery. Why do heavy ass riffs make us do this? we'll never know. Also, those who make and/or play the riffs cannot help it either, and are forced to do the metal face as well.
by Mory October 10, 2007
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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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A villain in Xenoblade. He's a large robot with claws that looks like he has a hunch. He's called Metal Face because they recognize it as the only mechon they've seen with a face.
God dammit, I can't beat Metal Face!
by Begulus December 14, 2011
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A Person with a metal face,
meaning a person with alot of piercings
Most the myspacers have at least one.
One with alot of piercings, hence metal face.
oh well ones that are on the face
and that are made of metal
by d33d$$ June 16, 2007
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