Definition of molly-blob in English:

molly-blob

Pronunciation /ˈmɒliblɒb/

noun

dialect British
  • The marsh marigold, Caltha palustris.

Origin

Mid 19th century; earliest use found in Anne Baker (1786–1861), philologist. From Molly, pet-form of the female forename Mary + blob see discussion s.v. mareblob.