Green’s Dictionary of Slang

kick adj.

1. (US drugs) describing anything relating to coming off an addiction, e.g. kick pad or kick ward, a hospital ward reserved for recovering addicts [kick v.4 (1)].

[US]L. Lipton Holy Barbarians 22: Dolophenes are kick pills to alleviate the discomfort of being without heroin when you’re sick.
[US]J. Wambaugh Blue Knight 35: I went to a kick pad over on the east side and asked them to sign me in.
Poor Mag. Online 10 Apr. 🌐 [She was] placed in a tank where all the other women are detoxing cold-turkey from heroin. [...] One of the other women in the ‘kick tank’ with Anita, has diabetes and epilepsy, and no medication.

2. (US teen) unfashionable [? should be kicked out].

[US]Rosemary Jacobs in San Jose Mercury News 11 May n.p.: Kick (adj) – Out of style. Those jackets are kick.