Since UV 1 is just a brand name, while it may be popular in certain locations, I don't think it's the definitive definition. Never heard UV 2 used before either (maybe a locality thing too but not as likely as UV 1) so I am going with the standard... UV = Ultra Violet as in light wave. Especially referring to lights.

a uniform violation; something (usually an accessory or an article of clothing) that is not part of a uniform.

An old UV bottle full of piss. Used to fool idiots who think there is such a thing as UV gold.

flavored vodka, it has a brother called UV blue. UV red isnt that good, but UV blue is.

Cherry flavored vodka that tastes exactly like cough syrup.

A fucking asshole who drives an SUV like they own the road. Said species can be frequently found tailgating late at night with their high beams on. These fuckers can also be found cutting in and out of traffic, driving like they're in a race car and flipping everyone else off for not getting out of their way. Generally Ass-UV's are attracted to the biggest, clunkiest and most gass guzzling SUVs they can find. Think Chevy Suburbans, Ford Expeditions and the like.

A form of vodka that tastes as if you are drinking liquid cake. 30% alcohol content but due to the fact you can drink this shit straight you are more than likely headed for a blackout night.