moo

noun

1. (onomatopoeic)The characteristic lowing sound made by cattle.
2. (UK, derogatory, mildly, slang)A foolish woman.

   “You silly moo! What did you do that for?”

   “'Aurora House does not expel,' said the sanctimonious moo, 'but you will be medicated, if your behaviour warrants it, for your own protection.'”

3. (abbreviation, alt-of, initialism)Initialism of matter of opinion.
4. (abbreviation, alt-of, initialism)Initialism of MUD, object-oriented.
5. (abbreviation, alt-of, dated, initialism)Initialism of Money Order Office.

   “[…](3) the nature of the Postal business accommodation supplied by the local Post-Office—thus, PO (Post-Office), SB (Savings Bank), MOO (Money Order Office), or, if there be no PO, the name and distance of the nearest PO[…]”

   “It was to help solve a serious problem – mice. For the little vermin were chewing letters containing banknotes and postal orders, especially at the Money Order Office (MOO).”

6. (abbreviation, alt-of, initialism)Initialism of massive overdense object.

verb

1. (intransitive)Of a cow or bull, to make its characteristic lowing sound.

intj

1. The characteristic sound made by a cow or bull.

   “The cow says moo.”

name

1. (abbreviation, alt-of, initialism)Initialism of Master of Orion.
2. A surname.