Stock rims on the driving wheels of a car (naturally without hubcaps) when the other wheels are bling alloys. Used to ensure that bursting tyres during a burnout does not result in destroying those megabuck bling alloys.
Or at least to create the impression that this is what you are planning to do, even if you've never spun the wheels in your life.
Usually seen in Australia on VN-VS series Commodores.
He's got the burnout rims on...poser!