During the act of two men penetrating a single orifice of another person, their testicles collide causing a swinging effect similar to that of newton's cradle, the device used to display preservation of energy.
James: "Adam, you fancy doing a Newton's Cradle on Wendy?"
Adam: "Nah, me and Pete did that and my balls ache."
Pete: "Awww yuh."
Adam: "Nah, me and Pete did that and my balls ache."
Pete: "Awww yuh."
by Wangrom July 12, 2010
When in an act of a 3-some involved with a female and two males and one penis is in the ass and one penis is in the vagina and their balls are alternating turns clanking together with their momentum.
hip thrust x ball mass = good times squared
hip thrust x ball mass = good times squared
My balls created some sick momentum at the Newton's Cradle party last night but now my balls are sore. Are yours?
by red headed clanker July 7, 2011
When two butthole surfing gentlemen get together and, rather than "scissor", slap their nuts together in such a fashion that the laws of physics are predominantly exemplified.
I was studying for class and my professor suggested trying a "Newton's Cradle" but I'm pretty sure we had different ideas.
by TheJewishWonder April 25, 2019
The Missouri Newton's Cradle is an activity in which 4 or more men tie a rope or string with a weight around their scrotum. They line up, generally close together and facing one direction, and the one in the front pulls their weight forward and releases it so it hits the weight behind his. This will go on to the last person and then you have completed the Missouri Newton's Cradle.
Have you seen Josh, he has been walking funny ever since he took 50 pounds at last night's Missouri Newton's Cradle.
by Iaasic the conquer September 30, 2019
When a man performs a Newton's Cradle with a pair of breast. He sticks his head inbetween and lets them hit his cheeks
Zach: how was that lame Barmitzvah.
Derek: it wasn't lame, Lassie let me perform Newton's Cradle Cups.
Zach: she's like a D Cup!
Derek: I know, I got a concussion
Derek: it wasn't lame, Lassie let me perform Newton's Cradle Cups.
Zach: she's like a D Cup!
Derek: I know, I got a concussion
by WheezyLegere September 17, 2015
A vagina so massive and loose, that a man's penis and balls can be inserted-hence go Balls Deep. This is usually found on a fat chick.
The night wasn't going well, so I decided to lower my standards and go for some Newton's Cradle Pussy. I will never get that drunk again!
by Johnny Feltersnatch November 20, 2003
A game where 5 or 6 men line up and slap balls together like newton cradle balls until everyone except one has left the game
by N22rush October 4, 2018