When I was little, I had Baby Cakes, Little Brown Bug in a Rug (I was really tan), and Noodleroni. I acutally didn't mind those... they were pet nicknames. My mom refused to let me be called Nicki.
But then my jerk uncle started calling me Wendy Whiner because I got picked on a lot as a kid and cried a lot because of it.
In high school I got nicknamed Booter because I was a soccer player and one of the dumb football jocks decided to call me that.
Now in college I'm Big Boobs or Boober.
One of my friends wouldn't quit shouting "Big Boobs!" across campus every time she saw me so I started calling her Tiny Tits. Heh.