Funnily enough, food is often used metaphorically to describe someone's eccentricity or level of sanity.
We have nuts
- Slang. a foolish, silly, or eccentric person. an insane person; psychotic. adj.
"crazy," 1846, e.g. to be off one's nut, "be insane," (1860), from earlier be nutts upon "be very fond of" (1785) Meaning "crazy person, crank" is attested from 1903, (British form nutter first attested 1958; nut-case is from 1959)
adjective 1. (postpositive) ( Brit) a slang word for insane. Also, he was plain crackers [1928+; formed with the British suffix -ers, like bonkers, preggers, etc]
adjective Eccentric; odd; nutty, weird (1930s+ Teenagers)
Slang. a crazy or eccentric person; meaning "lunatic person" is first attested 1952.
adj. "crazy," 1968; esp in the phrase go bananas, earlier (1935) it was noted as an underworld
slang term for "sexually perverted." Crazy; nuts: I could see that my calm was driving him bananas (1970s+)
[from the idiomatic expression] to drive somebody bananas
and cupcake
noun An eccentric person; nutball: regarding puppeteers as kind of
weird cupcakes who play with dolls / the publishing cupcake who nailed
you on the couch and then fired you (1970s+)
And yet I couldn't come up with any beverages, meat, or vegetables to add to that list. Why are baked "bread" products and fruits more commonly associated with eccentricity or madness? Are there any other foods I can add to this list? Are there any forgotten or archaic food words that describe a person's sanity?
P.S. Please add references/backup/sources with your answers. Thanks!
Source: All definitions taken from Dictionary.com
EDIT: Related to origins of nuts meaning madness is a question entitled
How did the phrase “Are you nuts” come about?
Best Answer
The reason why many fruit-related terms are associated with craziness is that most of these slang terms were previously related to homosexuality. In the early 20th century homosexuality was considered a mental illness, as a result this led to a shift in meaning that continued until the 1960s.
Homosexuality was associated with fruits because of the effeminacy of homosexuals, thus softness. Fruits are soft also and there you go. You can refer to Cassell's Dictionary of Slang (By Jonathon Green) for the origins of fruit-themed slang terms with connotations of homosexuality:
As you can see below, fruitcake had the meaning of eccentric person first but gained the meaning of crazy in US slang after gaining the connotation of homosexual man. It must be the craziest food because it contains both fruits and nuts. Hence, you can define the craziest person as "nutty as a fruitcake" and even "nuttier than a fruitcake".
Banana also meant homosexual in the past:
But the phrase go bananas is said to be originated from zoos. Monkeys in the zoo go wild when they see bananas coming. Below is excerpt from the book Food: A Dictionary of Literal and Nonliteral Terms (By Robert Allen Palmatier):
Cupcake is not necessarily related to fruits but it connoted homosexuality also in the 1970s:
Though, in the case of "nuts", people were actually crazy for the food and the food became crazy. People were nuts about nuts.
Crackers is a bit different and trickier though. It seems it is derived from cracked and it shares the same meaning with other similar terms: crackerbarrel, cracko, cracky:
It might be associated with mental breakdown and thus, falling to pieces. It seems it shares the same or similar roots with craze:
Etymonline says that it is still used in its original sense in crazy quilt:
It is used in the phrase drive someone crackers also. Below is excerpt from the book Food: A Dictionary of Literal and Nonliteral Terms (By Robert Allen Palmatier):