Definition of "hopped-up" [hopped-up]

• (of an automobile) having the engine modified to give extra power (adjective)
• Under the influence of narcotics (adjective)

WordNet. Princeton University. 2010.

• "America's longest prohibition dates back to 1937 -- the "Reefer Madness" era when the country's earliest anti-drug zealots (led by former head of the Federal Bureau of Narcotics, Harry J. Anslinger) convinced a gullible public that marijuana caused people to commit unspeakable acts of depravity, such as when the hopped-up stoner runs over an elderly man in the guffaw-inducing exploitation flick."
• "If I never see another hopped-up guy with his face all squished beneath a panty hose mask, that'd be fine with me."
• "Here's a good analogy: how friendly do you feel toward that loud H-D motorcycle that deafens you, or the hopped-up, "race" - inspired small sedan with the loud exhaust that races in and out around other cars?"