In the chorus she sings "If teardrops could be bottled There'd be swimming pools filled by models"

Which clearly means that if it was possible to commercialize and mass extract tears from models super rich would fill swimming pools with them and bathe in them for some weird supposed health and beauty benefits (like bathing in milk).

In the previous verse she also says "Kind of mood that you wish you could sell". I don't know where I'm going with this... just thought it was cool