A penis that has an extremely big head but skinny shaft. Pendulum Penii swing like a clock's pendulum when the possessor walks with a normal gait.
Man, did you see Jason in the locker room? He has a fucking pendulum between his legs. Every step it swung from 1 knee to the other.
by Shannon A. March 5, 2008
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When your balls get so hot and sweaty they hang down low and swing back and forth from leg to leg like a pendulum!
by Gielskio June 4, 2003
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The act of a female that practices kegel exercises, kneels on top of a man, inserts his junk, squeezes, and picks him up. Then proceeds to swing him to and fro.
She might be a big ol girl, but she can pick up a Cummins Dodge with that shit like a pendulum.
by @$$LikeAJapaneseFlag November 1, 2011
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Pendulum are an electronic drum n bass group originally from Perth, AUSTRALIA. In 2003, they relocated to the United Kingdom. The group is comprised of Rob Swire(ascenic), Gareth McGrillen(speed) and Paul Harding(el hornet).

The Pendulum sound is typically heavy beats accompanied by low, buzzing basslines, overlaid with synthesized leads.
In 2005, Pendulum released their debut album, 'Hold Your Colour' and is the best selling drum n bass albums of all time.
I saw pendulum in perth live, it was OFF TAP!
by switchdnb01 September 1, 2007
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A grandfather cock. It hangs limp and swings from side to side.
A classy stripper says: "I gave that old man a lap dance, he loved it when I felt up his pendulum. I made 200 bucks in 10 minutes!"
by UrbanPrick July 28, 2013
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When three men have sex, each inserted into the one in front. When the one behind bangs the middle, and the middle bangs the front, their balls slap and create a pendulum effect.
I came up with a new position. I call it the pendulum!
by ##745## April 10, 2015
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Another term for a bisexual. It is quite often used in negative terms.
He's a pendulum, he might hit on everybody!
by DaSolution July 10, 2011
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