ape about
balmy
bananas
barmy
bats
batty
beany
bedlamite
bonkers
buggy
bughouse
bugs on
cracked
cracked on
crackers
crazed
crazy
crazy about
cuckoo
daffy
daft
demented
dippy
dotty
flaky
flipped
freaked-out
fruitcakey
fruity
gaga
gaga over
gone on
goofy
gung ho
haywire
hepped up over
hipped on
hot about
insane
just plain nuts
keen
kooky
loony
loopy
mad about
nuts
nuts about
nuts on
nutty
off the hinges
drugs
hugs
jugs
lugs
mugs
plugs
rugs
shrugs
slugs
thugs
tugs