Someone who owns items, especially cars, which are far more expensive than other comparable items. This is done in an attempt to look cool, but inevitably involves involves them looking a total tit. Anyone who drives a new Mini Cooper or a BMW is instantly a
pretentious git.
Anyone who thinks a
conversation about the bodywork, wheels or paintjob on their car is at all
interesting is almost certainly a pretentious git. In many countries it is illegal to let such drivers out of side turnings.