Totocane, I had to Google "Jocko." No ******* clue what that means, but there are a few ways to define the term (according to Urban Dictionary):
1. A woman who enjoys the taste of large amounts of man juice in and around her oral region, many times a day!
ex. Last night the sloppy jocko pleased the whole crew!
2. Walking *****
ex. An out of shape, bald man who actually think he looks cool with his shaved head.
3. When you rub & scratch your sweaty,
musky ******* & then
smear your hand around the rim of someones drink.
ex. He was talking **** so when he wasn't looking I jocko'd his beer.