Abstaining from drinking any alcoholic drink, usually in the sense of having given it up (as opposed to never having partaken); teetotal.
Used other than figuratively or idiomatically: see on, the, wagon.
Maintaining a program of self-improvement or abstinence from some other undesirable habit.
Of an engine, a motor vehicle, etc.: modified for higher performance.
Intoxicated by alcohol or drugs.
Excited.
Improved.
Of a racehorse: injected with a substance to make it run faster or to change its temperament.