I'm not sure if this counts, but it is my favorite joke, so I'll tell it, you have to say it out loud, in a southern accent, or it doesn't really work.
3 Southern belles all have boyfriends named Bubba. This becomes confusing and is often the beginning of many arguments, so they decide nicknames are in order. They decide they will nick name their bubbas after soda pops.
The first belle says, "I'm gonna nickname my bubba...7-Up, 'cause he's 7 inches long and he's always up."
The second belle says, "Imma nickname my bubba Mountain Dew, 'cause that's all he wants to do is Mount'n'do."
The third belle is hemming and hawing and finally says, "I guess I'll nick name my bubba Jack Daniels."
The other two exclaim, "Sweetheart! You can't do that! That's not a soda pop, that's a hard liquor!"
And she says, "Yeah, I know."