I don't know where 'Trev' & 'Shazza' came from. But it's a saying (if you can call it that) that I learn't from Perth WRX.
For those who know me, I came from the sterotypical bogan atmosphere before I moved to perth & I did know a Trev & he was a bit of a bogan but that was it.

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2000 Mitsubishi Evo Tommi Makinen - Diamonds are a girls best friend.
Tokyo Motorsports - www.tokyomotorsports.com.au