Graphic Joke Warning: 3rd Grade Show n' Tell

Three third graders from Tennessee (an Irish kid, an Italian kid and a Redneck kid) are on the play ground at recess.
The Irish kid suggests that they play a new game. "Let's see who has the
largest weenie," he says.
"Okay." They all agree.
The Italian kid pulls down his zipper and whips it out.
"That's nothing," says the Irish kid. He whips his out and proudly shows
that his is at least an inch longer.
Not to be outdone, the Redneck kid whips his out. It is by far not only the
biggest, but the fattest.
That night, eating dinner at home, the Redneck kid's mother asks him what he
did at school today.
"Oh, we worked on a science project, had a math test and read out loud from
a new book and then during recess, my friends and I played a new game called
"Let's see who has the largest weenie."
"What kind of game is that, honey?" asked the mother.
"Well, me, Anthony and Patrick each pulled out our weenies and I had the
biggest! The other kids say it's because I'm a Redneck. Is that true, Mom?"
Mom replies, "No, Honey. It's because you're twenty-one."