Why? Why? Why?

1. Why women are called 'chicks' or 'hottie' ? Why don't just we called them 'iguanas' or 'rhinoceros' or maybe 'lizards' ?
2. Why we called thew person who peeps as 'peeping-Tom' ? Is Tom the first person that peeps? Or anyone with the name Tom is a peeper? Why don't just we called them 'peeping-Jude Law' or 'peeping-Brad Pitt' ?
3. Why penis is called 'dick' ? Why not 'john' or 'kent' or maybe 'rick' ?
4. Why people said 'women are from Venus and men are from Mars' ?
5. Why people called it "Adam's apple" ? Why not "Adam's banana" or maybe "Adam's durian"?
6. Why people called it 'Boobs' ? Why not 'Scoops' or 'Doods' ?
   

There are still a lot of questions about that, but I already forgot.....hehe.....