Growing up riding to Middle School on I bike, I thought I understood something about motorcycles. There are a few terms my dad never used in front of me or that I simply did not pay attention-allow me to educate you on some common biker terms:
Trike: a three wheel motorcycle for those too old to climb on a regular motorcycle

Turtle shell-a helmet that looks like a turtle shell and not unlike what the Germans wore in "Hogan's Heroes"
Ape hanger: a motorcycle where the driver has to reach up to the handle bars and dangle like a monkey as he/she drives. In Arkansas, the legal limit is 15 inches. I don't think the people driving Ape hangers even care.
Fat boy: a reference to the tire on the motorcycle not the person driving it