I happened on an article published in an Australian newspaper describing problems with local "bikie gangs"... http://www.gcbulleti...
http://www.gcbulletin.com.au/..../ 5091_news.html
I thought, what the Hell is a "bikie"?
Then I realized it's just their way of saying, "biker".
Here in the States, anytime we add the letters "ie" to end of a noun, it's done to make it sound like cute and playful (e.g.: doggies, kiddies, fishies, etc.)
So I ended up with this vision of several four and five year olds riding bicycles with training wheels, wearing tank-tops, doo-rags, "lick'em & stick'em" tattoos, and running roughshod over the next-door neighbor's tulip beds.
Except the bikie gangs described in the newspaper were manufacturing and distributing methamphetamines. So I guess they were a little older.