Refers to any shirt, smock, sweater, robe, tunic, habit,
gown, frock, cloak, kimono, polo, vest, T-shirt, tank-top,
tube-top, or other apparel featuring a small corporate logo, usually on the left breast.
They are so common that by now all inhabitants of the modern
world subconsciously and automatically filter them from their
perception, eroding what little use they once had as marketing
tools and leaving all of us with huge piles of ugly, cheap
cotton/polyester mix rotting slowly in our closets.