Chavtimization- to take a car and customize it in such a a pikey way to make the rest of us laugh our heads off.
Example, massive spoiler on the back on car that shouldnt be there, has no reason to be there other than to identify the driver as a king chav. Other example, crap paint job, stupid exhaust.

A person with an outwardly dominant, masculine, or aggressive personality, but who also enthusiastically takes on the submissive or "bottom" role in the bedroom.