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1. Scrotum-wanking
Where some people like to scratch or play with their scrotum bags through the trouser pockets.
Jack stood Scrotum-wanking in the public, oblivious of passersby
2. Sack Wank
The order in which your scrotum is stimulated either by the hands or the mouth, this is suppose to massage the prostate causing ejaculate to seep out of the penis
im tired of wanking my penis, ill sack wank instead
3. scrote
Verb: to scrote.

The act of placing your testicles back inside your body (as they do when cold) leaving nothing but your scrotum skin hanging down. You then place this loose skin between both of your hands (or indeed, your partners hands) and rub back and forth to create friction.

Inventive new torture, or fun masturbatory aid? You decide.
Bored of his usual technique, Sam decided to go scrote one off with his friend, Sean.
4. Face Wank
When in the act of face book raping somebody you realise you are logged in to your own account and have actually insulted yourself on your own wall.
OMG I just tried to Frape john but inatead told the world I like to lick dogs scrotum I just face wank ed
5. cocktwaddler
Cocktwaddler, Cock Twaddler. both are acceptable.

Kok-twah-dler. (n) 1. one who regularly sticks their hand down their pants in public to readjust their penis and/or scrotum from an uncomfortable position within their undershorts, or in the case of going commando, avoiding a potential Zipper Incident. ; 2. (n) A device used for male masturbation can also be described as a cocktwaddler.
1.) *Jim reaches down his pants and adjusts his junk*
Bill: Oh god, Jim, dude don't fucking be a cocktwaddler.. go wash your fuckin' hands man..

2.) A Fleshlight can also be called a cocktwaddler.
Husband: Honey, where's my cocktwaddler?
Wife: Hell if I know, you pervert!
6. Joy Dropping
A solo sex act where a male heats his scrotum with a hair dryer or similar impliment followed by "dropping" in a bowl of ice water to introduce rapid temperature change. This results in the testicles shrinking (shrinkage) and if done properly, a "hands free" ejaculation/masturbation.
Dude! My roomate was trying Joy Dropping and burned his nuts with the hair dryer! That idiot needs a real girlfriend...
7. Play the hairy banjo
Basically having a wank, jerk, or male masturbation.

Your erect penis represents the banjo "shaft" and the hairs represent the strings. Your ball-bag/nuts/scrotum representing the resonant body of the banjo.

Play away and try not to get too carried away or else you might.... Ooops.... Sorry... I've just cum.
To quote the words of a famous song:

"Bum-titty-titty, bum-titty-titty, play the hairy banjo !"
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