Ass Definition

ăs
-asses
noun
-asses
Any of several hoofed mammals of the genus Equus, resembling and closely related to the horses but having a smaller build and longer ears, and including the domesticated donkey.
American Heritage
Any of a number of horselike perissodactylous mammals (family Equidae) having long ears and a short mane, esp. the common wild ass (Equus asinus) of Africa: donkeys and burros are domesticated asses: in fables the ass is represented as obstinate and stupid.
Webster's New World
A foolish or stupid person.
American Heritage
A stupid or silly person; fool.
Webster's New World
Any of several hoofed mammals of the genus Equus, resembling and closely related to the horses but having a smaller build and longer ears, and including the domesticated donkey.
American Heritage
Synonyms:
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adjective
Used in combination with adjectives as an intensive.
I don't want to play your dumb-ass game. That is one crazy-ass idea.
American Heritage
Synonyms:
  • intransigeant
affix
Added to adjectives as an intensifier.
A big-ass pickup truck.
Webster's New World
suffix
(slang, vulgar) Intensifies an adjective.
Wiktionary
(slang, vulgar) Converts an adjective into a noun having the meaning of, "one who is [adj.]".
Wiktionary
idiom
have (one's) head up (one's) ass
  • To behave in an ignorant or foolish manner.
American Heritage
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Other Word Forms of Ass

Noun

Singular:
ass
Plural:
asses

Idioms, Phrasal Verbs Related to Ass

Origin of Ass

  • Middle English asse from Old English assa perhaps a hypocoristic for Old English dialectal (Northumbrian) asal ultimately (perhaps via a Celtic form akin to Old Irish asal) from Latin asinus asinine

    From American Heritage Dictionary of the English Language, 5th Edition

  • Middle English asse from Old English assa perhaps a hypocoristic for Old English dialectal (Northumbrian) asal ultimately (perhaps via a Celtic form akin to Old Irish asal) from Latin asinus asinine

    From American Heritage Dictionary of the English Language, 5th Edition

  • Middle English ars from Old English ears ors- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

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