The prison build consists of only having ripped pecks and triceps, and posssibly abs. This physique develops when only doing push-ups, pull-ups, dips and maybe crunches which are basically the only workouts one can do when confined to a prison cell.
by StreetLexicon June 9, 2018

A term used to describe a skinny or gaunt body type in an online dating or chat profile. Mostly used by gay men (but not exclusively), the term does not actually refer to the lean muscular frame of sprinters, long distance or marathon runners, etc., but rather is a euphemism for an extremely slim body, often tallish, with little or no tone or muscle definition, i.e low body fat, but unfit. Compare with other disingenuous sports related body type euphemisms like linebacker build or football player build (fat), and contrast with swimmers build (toned or athletic body type).
29, 6'3", 140 lbs., br, br, trim, runner build, 8"c (NOT AOL inches). Sane, stable, software engineer. Mature for my age.
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