Chavloys 

Oversized, bling alloys retrofitted to a car of in-adequate performance

Check out the Chavloys on that Corsa

Chavloys by Pheonixphill November 22, 2011

Challoys 

Cheap, plastic, usually very shiny car wheel trims that the chav who owns the car thinks looks like alloy wheels.

Nice challoys on that Car parked over there.

Challoys by Kayfer October 16, 2012