dumbassed
numbskulled
simpleminded
one brick short of a full load
dumb as an ox
dumbbutt
numbnut
bull
retardical
thick
blockheadish
bodoh
stupidy
dumbfuckery
stupidicy
foppery
dopey
baka
opaque
dumbish
thickhead
pratty
stupidass
thick as mince
thick as a plank
dumb as a doorknob
thick as two short planks
dumber than a box of rocks
dumb as a box of rocks
dumb as a stump
muddlebrained
dumb as a post
rock-dumb
shit-for-brains
thick as pig shit
dumb
dunderheaded
dumber than a rock
dumbass
dumb as dirt
thick as a whale omelette
retarded
goofball
sill
dumb as a bag of hammers
dym
twonk
malarkey
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