Half-Walnut 

A scrotum, after being subjected to cold temperatures.

Originally used by the comedian Billy Connolly when describing a seaside holday to Aberdeen, Scotland and his attempt at swimming in the North Sea.

I'm not getting into that swimming pool, it's mid-winter, i'll end up with a half-walnut!

Half-Walnut by barely standing February 14, 2006

Half-walnut 

The rear view of a vagina, available only when a naked hot woman with a thigh gap is standing.

"As I slowly kissed down her back and along the tender crack of her delectable ass, I was presented with the Holy Grail of all visions - the most perfect half-walnut."

Half-walnut by Cwuppacwoffee April 3, 2019

Half-Walnut 

A male scrotum, after being subjected to cold temperatures.

Originally used by the comedian Billy Connolly when describing a seaside holday to Aberdeen, Scotland and his attempt at swimming in the North Sea.

I'm not getting into that swimming pool, it's mid-winter, i'll end up with a half-walnut!

Half-Walnut by barely standing July 16, 2008