A human whose uncommon physical/hormonal attributes causes him to prefer the company of railroad employees, and to enjoy wearing their cool-looking sleeveless uniforms (i.e., "vests").
Many trainsvestites wear the traditional gray/white pinstriped engineer/conductor uniforms as part of their everyday outfits; they may also like to don the work-uniforms of their significant other while they’re spending time with said person in order to feel closer to him, just as some “ordinary” romantically-involved people like to wear one or more articles of their partner’s clothing --- like a sweater or pair of jeans --- to show their warmly-affectionate feelings for the garments’ owner.
by QuacksO November 8, 2018