RichThesaurus
fuzznut
vs
not the sharpest knife in the drawer
fuzznut
noun
A foolish person; a despised person.
not the sharpest knife in the drawer
noun
Lacking in intelligence; dimwitted.
How often have the words
fuzznut
and
not the sharpest knife in the drawer
occurred in a corpus of books?
(source:
Google Ngram Viewer
)