In its purest sense, nicknaming is an elitist ritual practiced by those who cherish hierarchy. For preppies it's a smoke signal that allows Bunny to tell Pooky that they belong to the same tribe, while among the good old boys it serves the cause of masculine dominance by identifying Bear and Wrecker as Alpha males.
A cardinal rule of writing is never interrupt yourself to explain something. If you must bring up an obscure topic, drop informative hints about it as you go along so that you don't end up with the entire explanation all in one place. This keeps you from skidding to a stop and sounding teacherish. Otherwise it's better to omit the obscure topic altogether, or as mothers might put it: if you can't say it interestingly, don't say it at all.
Hereditary monarchy offers numerous advantages for America. It is the only form of government able to unify a heterogeneous people. Thanks to centuries of dynastic marriage, the family tree of every royal house is an ethnic grab bag with something for everybody. We need this badly; America is the only country in the world where you can suffer culture shock without leaving home. We can't go on much longer depending upon disasters like Pearl Harbor and the Iranian hostage-taking to "bring us together.
Now the only thing I miss about sex is the cigarette afterward. Next to the first one in the morning, it's the best one of all. It tasted so good that even if I had been frigid I would have pretended otherwise just to be able to smoke it.
Showing up at school already able to read is like showing up at the undertaker's already embalmed: people start worrying about being put out of their jobs.