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The Pendulum 

When a man is on a swing, gaining momentum, and the woman is on the ground in front of the man bent over. The man then swings down and taps her ass and then swings back, and then when he swings forward again, tapping her ass, and doing so over and over again.
Joe used the pendulum on me so hard on the playground yesterday.
The Pendulum by thedairyfairy October 16, 2008

The Pendulum 

When your balls dangle so far you can swing them backwards and forwards like a grandfathers clock pendulum. This allows you to smack a girl in their face with your balls repeatedly.
"Dude I was smacking my balls in Mia's face last night"

"Alan, you did the pendulum?"
The Pendulum by Anal_Fister January 12, 2015

the pendulum 

when you pierce the skin between the vagina and the anus then put some string through it (a shoe lace). Then dangle a 3 pound weight from it and then swing the pendulum into the erect penis (chuckney channel) ta dah.
oh god my dick hurts from last night . my girl friend gave me the pendulum.
the pendulum by alex edgeington November 12, 2013

The Pendulum 

When you're hittin a dude from behind and both sets of balls are slapping against eachother like a Pendulum
"I was fucking Doug from behind, when our balls started slapping, hence, creating The Pendulum"
The Pendulum by Semen Monster May 22, 2015

The Pendulum Bag 

A sexual act in which an average to poorly endowed bayman with a biblically large scrotum engages in doggy-style sex. The oversized bag swings like a pendulum, crashing against the female’s clitoris like the waves of Griquet, causing mild pleasure.
Jeez by, I never had much of a lad, but luckily Jen dies for the pendulum bag.

Pit and the Pendulum 

A sexual position in which the female lays in the jackhammer position and the male enters her from the front with his ass hanging over her face. He will then defecate (note: it must be a log or the metaphor won't work) and let the log swing back and forth before it falls, thus "The Pit and the Pendulum."
That bitch was crazy last night, she wouldn't fuck me till I did The Pit and the Pendulum again.
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British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
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Word of the Day on October 3, 2026
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