Colloquial abbreviation of 薬物中毒. Can refer to the person or the condition of addiction. Rough, slangy tone.
See also: 薬物中毒
That guy is a total junkie.
It's really hard to get out of drug addiction.
Common slang spelling using katakana for ヤク (drugs) and kanji 中 (addict).
Kanji spelling; less common than the katakana form in casual use.
Abbreviation of 薬物中毒 (drug addiction/poisoning), with ヤク from 薬 (drugs) and 中 from 中毒 (addiction).