To disassemble one's Headlights in order to affect some cosmetic or functional change. The most common Joey Mod is painting the plastic housing that is visible behind the clear lens a different color-usually black.

Yo Pauly, You check out Vinnies Iroc? You know he dropped the suspension and installed a super charger right? Well now he added a rear wing spoiler and did a Joey mod. That shit's lookin' fly yo.
by TimmyGee February 16, 2007
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