Driving slowly so that the needle on your car's tachometer is pointing to the one--or your engine is only doing about 1,000 revs or less. This is usually done in front of a club or party in order to floss your ride and/or stereo system.
Did you see Skip's new whip?
Yeah, he came by the front of the club rollin' on the one so everybody could peep it.
Failing at a task or fumbling a job/task/situation; usually something simple. Based on the twenty-sided dice system used in games such as D&D, in which rolling a one usually constitutes an automatic failure (called a "fumble").
When he was unable to repeat what his Professor had lectured at him, James made a claimed of rolling a one on his "Listen Check".
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.