Jerky Sack 

A temporary condition of the male scrotum caused by a variety of conditions such as cold weather, swimming and other situations whereby the ball sack shrinks to a tight, leathery condition. The tightening results in sack giving the appearance of a beef jerky product.

Justin was outside in the cold working for serval hours. After coming inside and dropping his pants for a warm up hummer from his girlfriend, she pointed out to him that he has a severe case of the jerky sack, but blew him any way.

Jerky Sack by Eaton Holgoode June 4, 2009

Jerksack 

noun, the bag of skin which holds your testicles, thus containing several drain babies, or even the potential for human life

Before my hot date, I think it's best that I empty my jerksack.

Jerksack by Hot Rocks December 9, 2008