Changed it cos I was working one night handing out 'Quokkas' (a buy/sell newspaper thing) and I was being a bogan joking around, saying I was an ocker quokka, so I got home and changed it here cos I liked it. I use it on a couple other forums too now.
Oh and if you dont know what an actual Quokka is, its a like an over grown rat/mini wallaby thing thats native to an island off the coast called Rottnest Island (aka Rotto) that was named after the Quokkas by some French dude. Rottnest = Rats nest. They really are quite cute, but annoying at the same time cos they are so used to humans that they come inside the challays and cafes and try to steal your food. My stepsister lived there for a while and used to grab 'em by the tail and ditch them over the fence, it was quite funny when we were drunk, apparently it was the nicest way to move them. Much better than Quokka soccer anyway 🙁
Anyway, annoying little aussie thing fits me perfect!