(as) dumb as a box of rocks(redirected from as dumb as boxes of rocks)
(as) dumb as a box of rocks
Very stupid. You took apart the entire washing machine just to unblock the pump? I swear, sometimes you can be as dumb as a box of rocks, Larry. I used to think she was dumb as a box of rocks when we were kids, but she grew up to be a particle physicist.
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