spoon lure vs spoonful

spoon lure

noun
  • An oblong, concave lure, usually of metal or shell, shaped like the bowl of a spoon. 

spoonful

noun
  • The amount that a spoon will hold, either level or heaped. 

How often have the words spoon lure and spoonful occurred in a corpus of books? (source: Google Ngram Viewer )