RichThesaurus
hammer-headed
vs
not the sharpest tool in the shed
hammer-headed
adj
Having a head in the shape of a hammer
stupid, ignorant
not the sharpest tool in the shed
noun
Lacking in intelligence; dimwitted.
How often have the words
hammer-headed
and
not the sharpest tool in the shed
occurred in a corpus of books?
(source:
Google Ngram Viewer
)