runner build

A term used to describe a skinny or gaunt male body type in an online dating or chat profile. Often used by gay men (but certainly not exclusively), the term does not actually refer to the lean muscular frame of in shape sprinters, long distance or marathon runners, etc., but rather is a euphemism for a slim body with little or no muscle tone or definition. If you have low body fat, but are unfit, you have a "runner build." It's better than fat and unfit, right? Compare with disingenuous sports related fat body euphemisms like linebacker build or football player build, and contrast with swimmers build.