Kangaroo Balling 

This is when after anal sex with a fellow lady friend, you insert your testicles in her anus.Letting it clamp up, and jumping like a kangaroo to get them out.

I kangaroo balled Christina last night, in the end both of us were crying.

Kangaroo Balling by Will Benson February 21, 2004

kangaroo balling 

variation of wallaby balling, the homosexual version

Ben Wilson and Francais Comaux both enjoy the painful pleasure of wallaby balling.

kangaroo balling by kyle the pimp February 23, 2004