Green’s Dictionary of Slang

(US prison) a weak male prisoner who is abused by other inmates, forced to do their menial chores and poss. raped.

1971–2		C. Shafer ‘Catheads [...] and Cho-Cho Sticks’ in Abernethy Bounty of Texas (1990) 210: Maytag, n. – an inmate who is forced to hand wash another inmate’s clothes.
1982		Grandmaster Flash ‘The Message’ 🎵 Now your manhood is took and you’re a Maytag / Spend the next two years as an undercover fag.
1997		T. Fontana ‘Visits’Oz ser. 1 ep. 2 [TV script] Bitch [...] Maytag, shim. Here in Oz we call them prag. I don’t know where it comes from but you make a man your prag, he’s your prag for life.
1998		R. Price Freedomland 540: First I thought they were wearin’ dresses [...] so I figured they were representing the women in there, the Maytags, you know.
2000		Other Side of the Wall: Prisoner’s Dict. July 🌐 May tag: Passive homosexual partner.