pine box release; pine box parole noun death while in prison US
“ Ya done flipped and gotta yen for a pine box parole ’stead of walkin’ through the front gate” Percy taunts[.] — Iceberg Slim (Robert Beck), DoomFox, p. 214, 1978
— William K. Bentley and James M. Corbett, PrisonSlang, p. 105, 1992