| |||
| dumb as a tree (matchin); stupid as a goose (z484z) | |||
| one sandwich short of a picnic | |||
| as thick as two short planks | |||
| dumb as a rock (Donald Trump, 2018 Alex_Odeychuk); thick as a brick (о человеке, не отличающимся развитым интеллектом :)) rusil1); as sharp as a marble (Some people are about as sharp as a marble. ART Vancouver); dumb as soup (flammeverte) | |||
| blunt as a bag of wet mice (Wakeful dormouse); sharp as a bag of wet mice (Wakeful dormouse) | |||
| Brains of a rocking horse ((брит.) Maya M); dumb as dirt (joyand) | |||
| dumber than a sack of potatoes (Ying) | |||
| thick as mince (joyand) | |||
| |||
| several cards short of a full deck (Taras) | |||
| there's not much between the ears (MikeMirgorodskiy); box of rocks (Guy's a box of rocks Taras) | |||
