Any vehicle that attracts cops because of its very sheisty appearance, usually due to under-maintenance. Cops feel that these vehicles typically contain drugs and/or criminals. These vehicles will typically be within the limits of the laws, but still get pulled over just because of their dilapidated appearance.

Turd Cars typically have these characteristics: no rims, rims that do not match, missing hub caps, no hub caps, fading paint job, missing or torn away tint, shakes when you accelerate, bullet holes, cracked windows, shattered windows, missing windows, or just generally look like shit.

No Bull Shit, and old hacker acronym which is usually used to signify that the talk will be serious.