what does your user name mean?

[Mattytaipan]

My psn name the first part is my real name and I had just been watching a TV program about snakes just before I set up my psn name I liked the word Taipan and the snakes reputation of not backing down when threatened and striking many times when most snakes strike once and slither away,I am just
glad that in England we only have the adder that is venomous they are so reclusive they are rarely seen.