Two boys from the mountains, Joe and Dabbles, have been promoted from privates to sergeants.
Not long after, they're out for a walk and Dabbles says, "Hey, Joe, there's the NCO Club. Let's you and me stop in."
"But we's privates," protests Joe.
"We's sergeants now," says Dabbles, pulling him inside. "Now, Joe, I'm a-gonna sit down and have me a drink."
"But we's privates," says Joe.
"You blind, boy?" asks Dabbles, pointing at his stripes. "We's sergeants now."
So they have their drink, and pretty soon a hooker comes up to Joe. "You're cute," she says, "and I'd like to date you, but I've got a bad case of gonorrhoea."
Joe pulls his friend to the side and whispers, "Dabbles, go look in the dictionary and see what gonorrhoea means. If it's okay, give me the okay sign."
So Dabbles goes to look it up, comes back, and gives Joe the big okay sign.
Three weeks later Joe is laid up in the infirmary with a terrible case of gonorrhoea. "Dabbles," he says, "what fo' you give me the okay?"
"Well, Joe, in the dictionary, it say gonorrhoea affects only the privates." He points to his stripes. "But we's sergeants now!"