Ricer can mean many things:
from stupid body kits (aheam lancer done up like an evo ) or body kits that just dont suit the car, ugly spoilers, chat tail lights, daytime running leds, blinding head lights, chrome wiper blades, coloured wipers, neons, led valve caps, stickers, badges, emblems, cut springs/heated springs, ugly chrome wheels, spinners, home made exhausts that sound like a lawn mower that can be heard from the next suburb away, paint jobs that cost more than the car, dvd players, sound systems that have more power that the engine it self, ugly interiors i.e bodgy home spray interior pieces, vinyl instead of leather and wrapping interior peices.....plus heaps of other crap, toys hanging from back of the car, cable ties holding the car together (NO its NOT drift, dori, jap, its plain UGLY) and big fluffy dice hahahahaha
if you where a jap car going to a euro/muscle/exotic/super car meet up you would be labeled a ricer,
if you where trying to line up a car that is not even in the same class as you, your labeled a ricer
IF you get beaten fair and square but you still insist your labeled a ricer and a stooge
if you try and talk smack about how great your car is your labeled a ricer,
if you dont know ANYTHING about your car and just paid someone money to do it up for you, your labeled a ricer
if you try to drift a fwd car your a labeled a ricer
if you put stupid modifications on the car that actully make it worse your labeled a ricer
if you use cheap parts (no not second hand, but the cheap crap that everyone knows fails and breaks, ie. racing steering wheels on ebay thgat bend when you push them) on your car your labeled a ricer
if you buy parts of ebay your a ricer!@
some other stuff i found on the net:
http://www.urbandictionary.com/define.php?term=ricer
Young punks that dress themselves, and their cars, for 9 second runs down the quarter mile when in reality they can't break out of the 17's!
A person, usually a male under the age of 25, who buys an economy car(or is given one by their parents in the hopes that they will be reasonable) and attempts to hide the fact that its an economy car with body kits and spoilers that creat more drag than downforce, yet somehow (supposedly) help with acceleration and handling in a Front wheel drive car. Easily identified by the distinct sound of an extremely pissed off bumble bee, and a familiar, yet hard to describe smell coming from the exhaust, easliy smelled 10 car lengths back.