What does jacked mean?
Jacked is an informal North American adjective that can describe someone who is intensely excited, sexually stimulated, or “high” on a drug. The bare form is especially associated with American slang, while the related expression “jacked up” also conveys heightened energy, agitation, or excitement. The word is useful because it compresses strong physical or emotional arousal into a vivid label, but its informality and possible association with intoxication make context important. In conversation, “the crowd was jacked” naturally suggests excitement, whereas mentioning a drug usually selects the intoxicated sense. The term can be playful or emphatic, yet may sound crude or irresponsible when used seriously. It belongs in informal writing and speech rather than formal registers. Although it may look like an ordinary past participle, modern dictionary use treats it chiefly as an adjective, with senses that vary according to speaker, region, and context.
adjectiveInformal adjective meaning very excited, stimulated, or sexually aroused; it can also mean intoxicated or experiencing a drug-induced high.
- Very excited, stimulated, or sexually aroused.
- Intoxicated or experiencing a drug-induced high.
- Agitated, tense, or in a state of heightened energy.
"The crowd was jacked when the opening act finally took the stage."
"The crowd was jacked when the opening act finally took the stage."
"After the adrenaline wore off, he realized how thoroughly he had been jacked."
One word can describe both a stadium crowd on a high and someone under the influence of a drug—an impressively economical piece of slang.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does jacked come from?
Jacked is the standard past-participle form of jack, an English word with several long-standing and partly distinct senses and origins. The modern informal adjective senses belong to American slang and reflect the older verb’s associations with increasing intensity, energizing, and injecting. Because jack has had numerous independent uses, its history cannot be reduced confidently to one simple origin story.
How jacked is actually used
This is highly informal and context-dependent. The bare form can sound drug-related or sexually crude when no qualifier is supplied, so it is generally unsuitable for formal prose.
Easily confused with jacked
Jack is the base verb and a common noun with many unrelated meanings, whereas jacked is chiefly an informal past-participle or adjective meaning highly excited, stimulated, or intoxicated.