nutty (
http://definr.com/nutty)
adj 1: having the flavor of nuts; "a nutty sherry" [syn:
nutlike]
2: informal or slang terms for mentally irregular [syn:
balmy,
barmy,
bats,
batty,
bonkers,
buggy,
cracked,
crackers,
daft,
dotty,
fruity,
haywire,
kooky,
kookie,
loco,
loony,
loopy,
nuts,
wacky]