(Dorothy is explaining to Rose about Spanish Fly, which would be an aphrodisiac for the minks)
Dorothy: It's not a fly, Rose.
Rose: Spanish fly is not a fly?
Rose: What is it?
Dorothy: It's a beetle.
Rose: They call it a fly but it's really a beetle?
Rose: How do they know it's Spanish?
Dorothy: Because it wears a little sombrero, Rose!