Like freakishfae mentioned, this song is about couches being wrapped in plastic with the mindset that the dirt will be kept off the couch. Metaphorically, i believe MM is conveying the message of how families behave: the parents will dress and pamper their kids to look like perfect little school children. Yet as the kids look perfect, their "perfect" family has several problems, all hidden by the "plastic" coveralls on the kids. Or something along those lines.
Like freakishfae mentioned, this song is about couches being wrapped in plastic with the mindset that the dirt will be kept off the couch. Metaphorically, i believe MM is conveying the message of how families behave: the parents will dress and pamper their kids to look like perfect little school children. Yet as the kids look perfect, their "perfect" family has several problems, all hidden by the "plastic" coveralls on the kids. Or something along those lines.