load sock 

The sock that one blows his load into. May be stashed between the matresses, in the closet, or even worn (if your a sick fuck). Depending on the rigidity you can tell how often the sock is used.

"I just found tim's load sock under his bed. It's as hard as a rock!"

load sock by orophisiss December 9, 2012

Loadsock 

Noun: The sock of which is used to mop up a "load" i.e. "nut"

"You know like when you're too lazy to grab a towel when you're whackin' it? And you have to just grab the used sock closest to you...yeah, that's a loadsock"

Loadsock by Private Wood April 4, 2009