Cotton Condom
When one uses a sock for masturbatory purposes.
Dude, my misses wouldn't put out last night and I couldn't find any toilet paper so I used a cotton condom.
Cotton Condom
Using a sock (or similar article of clothing) as a way to prevent a spillage of seed. Used exclusively with masturbating males whom create quite the mess.
"John used a cotton condom the other day so he didn't get cum all over his new sheets."