KJ

English

Etymology 1

Probably an initialism of crystal (“phencyclidine”) + joint (“marijuana cigarette”).

Noun

KJ (countable and uncountable, plural KJs)

1. (slang, US) Phencyclidine (PCP); also, a marijuana cigarette laced with phencyclidine.

   Synonyms: see Thesaurus:phencyclidine

   • 2018, Tommy Orange, “Calvin Jonhson”, in There There, New York, N.Y.: Vintage Books, →ISBN, page 92:

     This was some other shit, what they smoked, could have been fucking angel dust sprinkled on, they called that KJ. Shit, knowing them that’s exactly why I couldn’t stop my head from bobbing, and why the streetlights were so fucking bright, and mean seeming, and, like, too red. I was glad I only hit it once.

Etymology 2

Noun

KJ (plural KJs)

1. (Philippines) Abbreviation of killjoy.

Indonesian

Pronunciation

• IPA^(key): /ˈkad͡ʒe/

Noun

KJ (first-person possessive KJku, second-person possessive KJmu, third-person possessive KJnya)

1. (education) Initialism of kelas jauh (“distance class”).
2. (medicine) Initialism of kedokteran jiwa (“psychiatry”, literally “soul medicine”).