free blowjob day
Of or referring to any unnaturally large crowd and the reason for their existence in a particular area. Often the event in question is heavily attended by men to the exclusion of women, though any unnaturally large crowd and their reason for existing can be described using this reasoning.
Why are there so many people lined to see this filler panel at Comic-Con that seemingly shouldn't be this crowded? It must be free blowjob day in there.