A shorthand term commonly used for the NBA franchise the Golden State Warriors. The name originated in the late 1990's and progressively became more popular as the fan base grew and became younger. It was originally coined due to the "W" in Warriors being pronounced as dub-a-you and it was shortened to simply dub for easier pronunciation.
An expression for a rather pointless number generator often seen on 4Chan and Funnyjunk. A random number is rolled (*roll 2*, etc) between 00 and 99. If someone was to roll 66 for example, the comment is thumbed up ridiculously high. If they're unlucky and roll lets say, 65, they're showered with negative thumbs until their account is banned.
Often accompanied by a picture of Christian Bale pointing at the roll (or something similar).
Commonly used to refer both to two dime bags of weed (which, incidentally, equal 20 dollars) and to 20'' rims on cars, particularly SUV's. The word "dub" is used to refer to something that equals 20, whether it be weed OR rim size.
Short for 'dubplates', a type of record used originally by dj's and producers of Jamaican music. They're softer than normal vinyl discs and don't last as long before the needle wears them out. The idea is to 'test' a track on the dancefloor using cheaply made dubplates, before having a more expensive vinyl press of the record made. Now used by producers of hip-hop, garage, drum'n'bass, trance, house, basically any kind of electronic music that people want to dance to, and craved by geeky DJ wannabes of said genres, to impress their eqally geeky non-DJ friends.