Lance Corporals

Two good old boys, Billy Bob and Cletus have been promoted from privates to Lance Corporals.
Not long afterward, they're out for a walk and Billy Bob says, "Hey, Cletus, there's the NCO Club; let's you and me step in."
"But we be only privates," protests Cletus.
"We're Lance Corporals now," says Billy Bob, pointing to his stripe and
pulling him inside.
"Now, Cletus I'm a-gonna sit down and have me a drink."
"But we're privates," says Cletus.
"You blind, boy?" asks Billy Bob pointing again at his stripe. "We're
Lance Corporals now!"
So they have their drink, and pretty soon one of the Army lasses comes up to Billy Bob.
"You're cute," she says, "and I'd like to date you, but I've got a bad
case of gonorrhea."
Billy Bob pulls his friend to the side and whispers, "Cletus, go look in the dictionary and see what gonorrhea means. If it’s okay, give me the okay sign."
So Billy Bob goes to look it up, comes back, and gives Cletus a big Thumbs Up.
Three weeks later Billy Bob is laid up in the infirmary with a terrible case of gonorrhea.
Billy Bob says to Cletus, "Why the heck did you give me the thumbs up?"
"Well,” Cletus replies, “in the dictionary, it says gonorrhea affects only the privates, and we’re Lance Corporals now."