What does the term macla or makla moon refer to in the Jonie Mitchell song Carey?

From Wikipedia, the free encyclopedia

Macula (pl. maculae) is the Latin Word for 'spot'. It is used in planetary geology to refer to unusually dark areas on the surface of a planet or moon. They are seen on the icy surfaces of Jupiter's moon Europa and Neptune's moon Triton. The term was adopted for planetary geology when high resolution pictures of Europa revealed unusual new surface features.[1]