A day in which the weather is less than desirable, cold, windy, rainy, overcast, snowy etc. and all you want to do is hang out with your "boyfriend" and your "boyfriend" must comply, because they have to. Sweat pants and sweatshirts are the recommended attire for maximum comfort. Please note, "boyfriend" days can be had with anyone, girlfriends, siblings, pets etc
OMG, it's such a boyfriend day....