Hmm, well mine came about from one of my best friends when my son was born.
Big - well at 6'3" and over 130kgs its self explanitory
Puff Daddy - well becoming a dad it reminded her of that guy that does that rap/dance music.
At school back in Lismore, one of the kids called me a fat womble in Year 5. Even after I smacked his nose across his face, they still called me womble until I left at 15 - but most people don't know what they are so I stick with the BPD thing these days.
Puff (aka Chris)