dumb as a box of rocks

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English[edit]

Etymology[edit]

Variation of dumb as a rock.

Pronunciation[edit]

  • (file)

Adjective[edit]

(as) dumb as a box of rocks

  1. (simile, slang) Very stupid.
    • 2001 July, “Tell it to my Heart”, in CMJ New Music Monthly, →ISSN, page 29:
      The drummer in my friend's band is pretty hot, but he's dumb as a box of rocks. I hear he likes me, and I definitely don't want to date him—but is his stupidity any reason not to simply have sex with him? — Carla, Brooklyn, New York