There are 2 main definitions of boob in English:

boob1

Line breaks: boob
Pronunciation: /buːb
 
/
informal

noun

1British An embarrassing mistake: the boob was spotted by a security expert at the show
More example sentences
  • The London newspaper which made the boob quickly acknowledged its error, and he took his seat in Parliament.
  • He will learn from his boob and it cannot detract from his performance.
  • It overcame the curse of the solitary writer by creating a Jekyll-Hyde pairing, the crass boob with a commercial touch and the angst-ridden elitist sibling.
2North American A foolish or stupid person: why was that boob given a key investigation?
More example sentences
  • Of course, if Homeland Security had swooped down on the harmless replica, that would have been taken as evidence they were incompetent boobs as well.
  • In the few scenes shown from the Union's side, we get the impression of incompetent boobs more afraid of the cold than command.
  • Lest it seem that I think that all journalists are ignorant boobs, I should note that there are exceptions.

verb

[no object] British Back to top  
Make an embarrassing mistake: police realized they had boobed
More example sentences
  • He should also be applauded for having the guts to admit he might have boobed and wrongly made one of the most crucial decisions in the match.
  • OK, I admit I boobed on the Marie Antoinette let-them-eat-cake thing.
  • I suggest we get as many people as possible to write in with a response so the paper knows it has boobed.

Origin

early 20th century: abbreviation of booby1.

Definition of boob in:

There are 2 main definitions of boob in English:

boob2

Line breaks: boob
Pronunciation: /buːb
 
/

noun

(usually boobs) informal
A woman’s breast.
More example sentences
  • I didn't even want to think what his reaction would be if the doc got anywhere near my boobs.
  • Her tummy is trim, her legs long (for obvious reasons), her boobs big, and her butt nice and round.
  • A blonde girl, hmmm, with big boobs, that's not so easy to pinpoint, there have been a quite a few of them on the show.

Origin

1950s (originally US): abbreviation of booby2, from dialect bubby, of uncertain origin; perhaps related to German dialect Bübbi 'teat'.

Definition of boob in: