Junkie
Junkie is a pejorative usually referring to a person with an addiction.

Entertainment and media
Junkie (novel), a novel by William S. Burroughs
"Junkie" (song), 2013 song by Medina featuring Svenstrup & Vendelboe
The Junkies, a radio program
MMA Junkie, a mixed martial arts website
"Junkie", a song by Ozzy Osbourne from Down To Earth
"Junky", a song by Brockhampton from Saturation II

People
Tom Holkenborg (born 1967), Dutch musician also known as Junkie XL