The worst thing you can call someone 

If target is male: baby dick
If target is female: (there are far too many insults that can send any member of the female gender into wild fenzy of violent rage)

You: Hey there, friend of bob, I mean "baby dick".
Me: YOU BASTARD!!!!! (walks away in shame)

Me: Hey there, (random female).
Female: (ignores and walks way, usually finding someone more attractive)

The worst thing you can call someone by friend of bob June 11, 2006

The worst thing you can call someone 

10.A Piece of Dirt
9. A Libertarian
8. A Republican
7. A Faggot/ A Dyke
6. A Waste of Human Tissue
5. A Nazi
4. A Frenchman
3. A Shit Stain
2. A Cunt
1. A DIEGO

Diego is the worse thing you can call someone. It'll make your target cry.

The worst thing you can call someone by G-Union June 11, 2006