juiced-up

the term "juiced-up" is a modern american english slang formation from the mid-20th century. it derives from the verb "juice," meaning to extract juice or to energize, combined with the particle "up" to indicate an increase or enhancement. the original literal sense of adding juice or power evolved metaphorically. by the 1970s, it gained specific slang meanings: first, to describe something made more exciting or powerful (like an engine), and second, to describe a person stimulated by drugs, particularly anabolic steroids, playing on the idea of being artificially "charged" or fueled.

this is a phrasal adjective derived from the verb phrase "juice up". it is considered unsegmentable for morpheme analysis as it is a fixed idiomatic compound where the meaning is not derived from the sum of its individual parts in a standard morphological way.