Green’s Dictionary of Slang

apache n.

[the wearing of ‘warpaint’ by Apaches and other Native Americans]

1. a lesbian.

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[US]B. Rodgers Queens’ Vernacular 70: any gay woman [...] Apache (obs, ’30s f pros sl).

2. (US gay) a man who uses cosmetics.

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[US]Maledicta IX 56: Apache n [R] Man who uses cosmetics; homosexual slang.

3. an act of sexual intercourse without the use of a condom [pun on the Apache Indian style of riding bareback adv.].

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[UK]Roger’s Profanisaurus in Viz 87 Dec. n.p.: Apache n. Sex without a condom. Riding bare back.

4. (Irish) a joyrider.

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[Ire]G. Coughlan Everyday Eng. and Sl. 🌐 Apache (n): joyrider.

5. (drugs) fentanyl.

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[UK]‘What Police Must Learn’ in Dly Teleg. 8 Nov. 🌐 apache — fentanyl.

In compounds

apache line (n.)

(US prison) a form of gauntlet whereby a a prisoner must move on their knees between two parallel ranks of baton-wielding guards.

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[US]Rayman & Blau Riker’s 62: [A]n ‘Apache Line.’ Officers lined up on the left- and right-hand side, and they had their batons out [...] you had to go through on your knees. They would beat you brutally.