I had a lengthy discussion about present-day "puffy shirts" and what it says about the wearer with my local fashion expert. Even at goth or scene clubs, where clothing approaches costumery which is often vampire-inspired, a guy who wears a shirt as full as Seinfeld's, or one trimmed with lace, sporting a jabot, etc. is immediately presumed to be gay. About the only place a straight man can wear such an item is a RennFaire or similar re-enactment event--although our son reports he still gets hit on by guys when he wears his.
Maryn, who doesn't know if that helps the OP at all