Dong Sock
A dong sock is any object that is placed over a man's penis with the hope of keeping it warm and completely functional. A plethora of objects can be used as dong socks: standard tube socks, fuzzy condoms, duct tape (sticky-side-out for safety), a snake skin, or one of those furry things that you put over the driver in your golf bag.
If one was stuck in the Arctic wilderness with his best friend, and his friend died, one could cut open his abdomen and use him as a dong sock, much like Luke did with his Tauntaun on Hoth.
ding-dong sock
a condom
bobby decided to be safe, and put on his ding-dong sock