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n. A sexual maneuver between a man and a woman/pwn victim/Pruger in which the man retracts his testicles up into his lower stomach and then shoots out one testicle at a time, alternating testicles with each blast. This is an alternative form of The Shotgun.
The NBA team The Detroit Pistons got its name because the founder of the franchise could use The Piston with extreme speed and accuracy.
by MC Derf March 16, 2008
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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
n. A sexual maneuver between a man and a woman in which the man retracts his testicles up into his lower stomach and then shoots out one testicle at a time, alternating testicle with each blast. This is an alternative form of The Shotgun.
The NBA team The Detroit Pistons got its name because the founder of the franchise could use The Piston with extreme speed and accuracy.
by MC Derf March 16, 2008
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Get a The Piston mug for your barber Sarah.

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