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Etymology and origin of the English word boob

Pronunciation

boob1 fool; blunder

Confidence
Probable
Formation
Clipping
First attested
1895 Queensland Times
Ultimate origin
English booby

Etymology

The word for a fool is probably a clipping from English booby (“a stupid person”).[2][3][4][5][6][7] Collins calls it a back-formation from booby.[8] Booby itself, recorded from the 1590s, is of uncertain origin;[4][3] it is usually taken from Spanish bobo (“stupid; a fool”), from Latin balbus (“stammering”),[2][9][10] but Barnhart notes that the sounds are far enough apart for some etymologists to have suggested German Bube (“worthless wretch”) instead,[3] and the OED thinks the sense "childish or foolish person" was probably a nursery word.[4] The sense "prison" goes back to booby hatch or booby hutch,[5][4][11] and the OED takes the sense "blunder" partly from boo-boo.[4]

Earliest recorded meaning

As an Australian verb, to lock someone up or send them to prison: 1895, in the Queensland Times.[4] As a noun for a stupid person, Green's Dictionary of Slang has it from 1905;[11] the OED's first record is from the Washington Post of January 1907,[4] and Etymonline quotes a racing article of November 1907 in which a boob is a careless and gullible punter.[2]

Semantic evolution

Etymonline describes the word as American slang that began among swindlers, for a gullible victim.[2] From the fool it moved to the fool's act: American slang had a verb boob, to blunder, by 1910,[11] and the OED records boob, to bungle, and to dupe, from 1915.[4] Merriam-Webster dates the British noun meaning "mistake" to 1934,[5] the OED to 1959, often in to make a boob,[4] and Collins labels both the noun and the verb in this sense British.[8] Ayto takes the American boo-boo, a mistake (1930s), and the slang boob tube for television from boob.[10] An adjective meaning idiotic or unsophisticated appears from 1911,[4][11] and H. L. Mencken seems to have coined booboisie (1922), the stupid general public.[2] The prison sense is mainly Australian and New Zealand slang, from 1908.[4][5][11]

Timeline

  • 1895 – verb, chiefly Australian, to lock up, imprison.[4]
  • 1905 – a fool, an idiot (American).[11]
  • 1907 – a stupid or blundering person.[4][5][2]
  • 1908 – a cell, lock-up or prison.[4][5]
  • 1909 – Barnhart's first date for the fool.[3]
  • 1910 – verb, to blunder.[11]
  • 1911 – adjective, idiotic, stupid.[4]
  • 1915 – verb, to dupe; to bungle.[4]
  • 1922 – booboisie, Mencken.[2]
  • 1934 – a blunder (Merriam-Webster; the OED's first record is from 1959).[5][4]
  • 1935 – intransitive verb, to make a foolish mistake.[4]

Meanings

Noun

  1. A stupid or awkward person; a simpleton: Only a boob would leave the keys in the car.[5][8][4]
  2. An ignorant and gullible person; a philistine.[5]
  3. (chiefly British) An embarrassing mistake; a blunder.[8][5][4]
  4. (chiefly Australian) A prison or cell.[5][4][11]

Verb

  1. (chiefly British) To make a foolish mistake.[8][5][4]
  2. To bungle something.[4]
  3. To make a fool of; to dupe.[5][4]

Word family

  • boobish
  • booboisie

boob2 breast

Confidence
Probable
Formation
Clipping
First attested
1929
Ultimate origin
English bubby

Etymology

The word for a breast is probably a clipping from English booby2 (“a woman's breast”),[4][5][7][12] which is an alteration of bubby,[4][12] a word for a breast recorded from about 1660.[4] The Shorter Oxford also allows a derivation from bub, of the same meaning,[6] and Etymonline links it with the much older plural “boobies”, which it dates to the late 17th century, and with bubby.[2] The OED thinks bubby was probably a nursery word, perhaps imitating the sound of sucking, and compares Middle High German buobe (“woman's breast”) and the Swiss German regional Bübbi (“teat”);[4] Etymonline suggests either a source in Latin pupa (“little girl”), in child-talk "breast", or a natural formation like French poupe (“teat”).[2]

Earliest recorded meaning

Breasts, as boobs: 1929, in American slang, according to Etymonline;[2] Merriam-Webster dates it to about 1931,[5] and the OED's first quotation is from James T. Farrell's Young Lonigan (1932).[4][11]

Semantic evolution

The word began in American slang,[4][12][11] and is usually plural.[4][6][11] Green's Dictionary of Slang notes that since the 1970s it has been one of the words especially favoured by women.[11] Merriam-Webster labels it sometimes vulgar.[5] Compounds include boob tube, in British use a tight strapless top,[6] and boob job, cosmetic surgery on the breasts.[8]

Timeline

  • 1929 – boobs, breasts, American slang.[2]
  • c. 1931 – a breast.[5]
  • 1932 – in Farrell's Young Lonigan.[4][11]
  • 1970s – a term especially favoured by women.[11]

Meanings

Noun

  1. (informal, sometimes vulgar) A woman's breast; usually in the plural.[5][8][4]
  2. boob job: a cosmetic operation on the breasts.[8]
  • booby
  • bubby
  • boo-boo
  • boob tube

References

  1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  3. ^ a b c d Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  4. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z 27 28 29 30 31 32 33 Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
  5. ^ a b c d e f g h i j k l m n o p q r Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  6. ^ a b c d Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
  7. ^ a b The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
  8. ^ a b c d e f g h Collins English Dictionary (2023), Glasgow: HarperCollins
  9. ^ Partridge, Eric (1966), Origins: A Short Etymological Dictionary of Modern English, 4th ed., London: Routledge & Kegan Paul
  10. ^ a b Cresswell, Julia (2021), Oxford Dictionary of Word Origins, 3rd ed., Oxford: Oxford University Press
  11. ^ a b c d e f g h i j k l m n Green, Jonathon (2010), Green's Dictionary of Slang, London: Chambers; digital ed. 2016–, https://greensdictofslang.com
  12. ^ a b c Stevenson, Angus, ed. (2010), Oxford Dictionary of English, 3rd ed., Oxford: Oxford University Press
Cite this entry

“Boob.” Etymologically, 31 Oct. 2026, etymologically.com/en/boob. Accessed 31 Oct. 2026.

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