the.com/nuts
A hard-shelled snack and an all-purpose word for the magnificently unhinged.
means Literally a seed in a tough shell; informally, crazy, intensely enthusiastic, or wildly excited.
from From Old English hnutu, the food; the slang sense bloomed in 1800s America, where being off your nut meant losing your head.
Famous replyUS general McAuliffe answered Nazi surrender demands with Nuts.
Botanical fraudPeanuts, almonds, cashews aren't true nuts at all.
Body slangThe anatomical meaning needs no further explanation here.