Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. A male ass or donkey.
- n. A foolish or stupid person; a blockhead: "You've acted like an irrational jackass and it's time you stopped” ( Margaret Truman).
Century Dictionary and Cyclopedia
- n. A male ass; a jack.
- n. Hence A very stupid or ignorant person: used in contempt.
- n. Nautical, same as hawse-bag.
Wiktionary
- n. A male donkey.
- n. A foolish or stupid person.
- n. An inappropriately rude or obnoxious person.
- n. A jack and an ace as a starting hand in Texas hold 'em due to phonetic similarity
- v. To behave very obnoxiously.
GNU Webster's 1913
- n. The male ass; a donkey.
- n. A conceited dolt; a perverse blockhead; -- disparaging and offensive.
WordNet 3.0
- n. male donkey
- n. a man who is a stupid incompetent fool
Examples
“Note to editor: If I can't say the word 'jackass' substitute the word 'jerk', but I really do mean 'jackass'.”
“There's no more use of the word "jackass," which created a mild controversy over the original.”
“I was just watching the new Hancock trailer again and I noticed that "jackass" is used twice in that trailer alone.”
Since When is Jackass an Acceptable Word in Trailers? « FirstShowing.net
“Lem, neocon may or may not be shorthand for Jews in some media circles, but in any circle you encounter, "jackass" is shorthand for Joe Klein.”
“What kind of jackass is STILL packing scissors when he/she goes on a flight?”
“As far as I can tell this jackass is just a garden variety bum.”
“But still, the fact that so many in Minnesota saw fit to elect a man less qualified than a braying jackass is quite troubling.”
Al Franken bravely goes after GOP *staffers*… - Moe_Lane’s blog - RedState
“This bird is commonly called the jackass penguin, from its habit, while on shore, of throwing its head backwards, and making a loud strange noise, very like the braying of an ass; but while at sea, and undisturbed, its note is very deep and solemn, and is often heard in the night-time.”
“This bird is commonly called the jackass penguin, from its habit, while on shore, of throwing its head backwards, and making a loud strange noise, very like the braying of an ass; but while at sea, and undisturbed, its note is very deep and solemn, and is often heard in the nighttime.”
“[29] Some historians suggest the jackass was born 1828 when Jackson was sometimes called a jackass by his opponents as a play on his name.”
Lists
These user-created lists contain the word ‘jackass’.
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®emovies
Movies or TV shows where the titles are also common words, generally one-word titles.
lost, alien, bug, elephant, siege, gladiator, flock, captivity, piano, roots, freaks, moonstruck and 269 more...
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Words that are also movies
Unabashedly stolen from a comment made by courier12.
vertigo, serendipity, casablanca, psycho, jaws, fantasia, stagecoach, network, rocky, giant, platoon, unforgiven and 285 more...
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Gapeseeds and Muckworms - Compound Derogatives
A list of compound derogatory names such as gapeseed, muckworm and lickspittle. Your one-word contributions to this list are welcome.
See sionnach's list derogatory terms I should use ...gapeseed, muckworm, lickspittle, makeweight, bootlicker, backscratcher, apple-polisher, backslapper, brownnoser, rakeshame, yesman, freeloader and 237 more...
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You animal!
Names of animals that are also used to describe kinds of people. Nouns only, preferably single word.
For a related list, see sionnach's beastly verbs.rabbit, shark, hog, pussycat, bear, bull, skunk, hawk, wildcat, buck, slug, heifer and 112 more...
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Insult me, slangly
muggins, fathead, jackass, twat, fuckstick, craptastick, dumbfuck, asshole, asshat, gorgeous, intelligent, brainiac and 3 more...
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dirtie dirtie
words most foul
fuck, cunt, shit, hell, bloody, bloody hell, fuckhead, fucking, ass, asshole, fuck off, what fuck and 33 more...
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October Words-11337
During the month of October, post at least 10 new words to this list. Make sure you cite where you read the word (book/author/pg) and quote the context/sentence where you found it. If someone has a...
amplification, till, osmosis, osmoregulation, pinocytosis, junction, transduction, paralysis, afflicted, isotonic, diverse, entrenched and 48 more...

Alexis Perez Male donkey: Not only was a hourse used as transportation, so was jackass's. (newbury house dic.) Oct 30, 2010
yarb Citation on unctuous. Jun 28, 2008
muamor This word insults donkeys. Feb 27, 2008