dumber than a bag of hammers
Lacking all intelligence
Dumber than a bag of hammers describes someone conspicuously stupid—the implication being that hammers, lacking brains entirely, set a low bar this person fails to clear.
The phrase belongs to a family of folksy comparisons for idiocy: dumb as a box of rocks, dumb as a post.
That boy is dumber than a bag of hammers.
- not the sharpest tool in the shedEuphemism for unintelligent
- not the brightest bulbLacking intelligence or wit
- boneheadedExtremely stupid or foolish
- thick-headedSlow to comprehend
- thick as a brickHopelessly slow mentally
sharp as a marble · dumb as dirt · airheaded · dumb as a box of rocks · lights are on but nobody's home · clueless · dull as dishwater · dimwitted · slower than molasses in January · pea-brained · mind like a sieve · scatterbrained · bird-brained · dense · bird-brained
dumber than a bag of hammersbrilliant
Intensely bright or gifted
genius · sharp as a tack · smart as a whip · intelligent · clever
dumber than a bag of hammersnot just a pretty face
Having hidden depths
dumber, dumbest, dumbness, bagger, hammer, hammers, hammered, hammering