1 definition by Meatspin

Top Definition
Describing the swinging action of at least 2 men's testicles as the slap against each other during anal sex.
They were at it so hard that their balls' were bouncing like a Newton's Cradle.
by Meatspin March 20, 2007

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×