You won’t find “agita” in most dictionaries, although it is a quintessential Italian-American slang word.
Strictly speaking, “agita” is a stomach upset or heartburn.
But “agita” can also mean that special kind of existential dyspepsia of the soul you get when absolutely everything goes wrong.
Comedian Jackie Mason has explained “agita” as “when you have been aggravated to the point where it feels like you have a serious migraine headache throughout your whole body.”
“Agita” is thus more or less the Italian-American equivalent of the Yiddish “tsuris” (“misery”), an equation not lost on Woody Allen, who made a song about “agita” the centerpiece of his 1984 film “Broadway Danny Rose.”
“Agita” is not a standard Italian word, and linguists are not certain where came from. One possible source is the Italian word “agitare” (“to agitate” or “to trouble”), which in turn came from the Latin “agitare,” which meant “to stir up.” To be “agitato” in Italy is to be very excited, and a musical score marked “agitato” is intended to be played at a frenzied pace. But it’s also possible that the source is “acido” (pronounced “AH-chee-do”), Italian for “stomach acid,” which then possibly became “agita” (“AH-jih-ta”) over time. Whatever the source, “agita” seems to have arrived in New York with Italian immigrants around the turn of the century, and has been in constant use, especially in places like New York City, ever since.
AGYEETA (Pronounced: a-gee-ta) like Bhagavad-GITA
Gita – (Hinduism) the sacred `song of God’ composed about 200 BC and incorporated into the Mahabharata (a Sanskrit epic); contains a discussion between Krishna and the Indian hero Arjuna on human nature and the purpose of life
Hindooism, Hinduism – a body of religious and philosophical beliefs and cultural practices native to India and based on a caste system; it is characterized by a belief in reincarnation, by a belief in a supreme being of many forms and natures, by the view that opposing theories are aspects of one eternal truth, and by a desire for liberation from earthly evils
Mahabharata, Mahabharatam, Mahabharatum – (Hinduism) a sacred epic Sanskrit poem of India dealing in many episodes with the struggle between two rival families.