I don’t understand the whole mens dress shirt thing, though I have seen it represented in a movie or two. It’s like the opposite of the feminine attire that lingerie represents lol. Anyways on this subject I will say that I became intolerant to bras and tried all kinds from various brands and retailers for a few years in an attempt to find one I could tolerate wearing and went basically without for a couple of years until I decided to try VS of all places and voila, for some odd reason I can tolerate their underwires just fine. Weird.
It represents a women spending the night at a man's home for the first time in the relationship.