2 guys, 1 chick in the middle. One guy puts his balls next to her left ear, and the other on the opposite ear. The two guys rock, paper, scissors on who goes first. The guy who goes first lets his balls hang then lets go, hitting the chicks ear. Then the energy is transferred due to elastic collision.
Bruh, me and my homeboy Tony fucked this chic. We did the Newton's cradle and she ended up with a concussions.
by papabenny February 28, 2018

by Big jig March 6, 2020

The action of 2 men standing next to one another and swinging their balls in such a way that they swing back and forth due to the horizontal force of each set of balls making direct contact
by bobrob1234 November 3, 2021

A reference from the song “cat’s in the cradle” by Harry Chapin which might be used to describe a situation in which a person starts to give lesser time to a relationship. In case of the song it was used for a father and son situation.
by Rangreza September 29, 2022

a 20 year old dating a 15 year old from 4 hours away and is totally wrapped up in her, also tries to get guts from her knowing that she is only 15.
Chris McPeters is such a cradle kill. Remeber that time he was a cradle kill. That whole summer he was acting like a cradle kill. Yeah thats the guy. To be cradle killed visit Neilson room 410.
by bread infection December 8, 2009

Joel: Dude, the Buffalo Bills just drafted a 20-year-old running back.
Shawn: Dang, the NFL be rocking the cradle!
Shawn: Dang, the NFL be rocking the cradle!
by SantoriniSwimmer223 December 28, 2024

by EmJayee November 8, 2018
