1. (of an automobile) having the engine modified to give extra power; - Example: "a hopped-up jalopy"
2. under the influence of narcotics; [syn: hopped-up, stoned]
WordNet (r) 3.0 (2006):
hopped-up
adj 1: (of an automobile) having the engine modified to give
extra power; "a hopped-up jalopy"
2: under the influence of narcotics [syn: hopped-up, stoned]