A younger person who is a waste of space, has no marketable skills, is not overly attractive or hygenic, is extremely loud and obnoxious, and typically has a drug and/or alcohol addiction. They usually travel in packs that ride around in a shitty, beat-up car together. Their hobbies include showing up and ruining your friends' parties. Attempts to try and curb dirty participation at regular-kid parties have been made by attaching "no dirties" requests at the end of party invitation texts/facebook messages, but it is an uphill battle. The best hope to fight dirty-ism is by hoping that they have to move once their welfare runs out/they can no longer make thier house payments/their dads get busted for drug possession.
(2) To be using drugs or found to be using through a test
(3) Shifty, greasy, unkempt, possession bad manners; having “redneck” qualities.
(4) A mullet
(2) Barry Bonds never showed up dirty on his tests because he took measures to ensure he showed clean.
(3) She's so dirty; he must be mad about her to wanna go out with someone s-o-o-o-o on the other side of the tracks.
(4) Dawg the Bounty Hunter has a helluva dirty.