What is Like Cookies In A Keebler Factory?
1.
1. Something extremely common, ordinary, mundane, or insipid. Mass produced.
2. Refering to people that mindlessly follow the crowd for no reason other than the need to fit in.
What you may call dressing up is probably what I call the thousand-duplets uniform: what the hoi polloi who are cranked-out en masse like cookies in a Keebler factory feel compelled to wear on such occasions to fit in.
See