Boy Band Parking is the 3rd best parking spot in the lot. Oftentimes, the absolute best parking spot is referred to as "Rock Star" or "Porn Star" parking. Regardless, Boy Band Parking is not as good as Rock Star Parking because the people in Boy Bands are not artist, musicians, or entertainers. Even though ALL Boy Bands suck, they do have their loyal followers for days, weeks, months or years, so they do get to have a parking spot named after them.
Marty: "Dude... You came in late this morning, huh?"
Andy: "Yeah, but I was early enough to still get boy band parking!"