Boeotian
ass
birdbrain
block
blockhead
blunderer
blunderhead
bonehead
boob
booby
boor
botcher
bumbler
bungler
chucklehead
chump
clod
clodhopper
clodknocker
clot
clown
dimwit
ding-a-ling
dingbat
dolthead
donkey
dope
dullard
dumb cluck
dumbbell
dummy
dunce
dunderhead
dunderpate
fathead
flake
fool
fumbler
gawk
goon
gowk
idiot
ignoramus
imbecile
jerk
simple
simpleton
Berk
dumbass
fuckhead
hammerhead
klutz
knucklehead
loggerhead
lunkhead
muttonhead
numskull
shithead
bigot
bubblehead
coot
dabbler
jackass
jism
lackwit
moron
nincompoop
ninny
oaf
too
weakling
wiseacre