Synonyms of the word

jackass

• n. A male donkey.
• n. A foolish or stupid person.
• n. An inappropriately rude or obnoxious person.
• p.n. (poker slang) A jack and an ace as a starting hand in Texas hold 'em due to phonetic similarity.
• v. (rare) To behave very obnoxiously.

ass

• n. Any of several species of horse-like animals, especially Equus asinus africanus, often domesticated and…
• n. (slang) A stupid person.
• n. (vulgar, slang) Buttocks.
• n. (vulgar, slang, uncountable) Sex.
• n. (vulgar, slang) Anus.
• n. (slang) Used in similes to express something bad or unpleasant.
• n. (slang) Used after an adjective to indicate extremes or excessiveness.
• n. (slang) One's self or person, chiefly their body.

bozo

• n. (slang) A stupid, foolish, or ridiculous person, especially a man.

cuckoo

• adj. Crazy; not sane.
• n. Any of various birds, of the family Cuculidae, famous for laying its eggs in the nests of other species;…
• n. The sound of that particular bird.
• n. The bird shaped figure found in Swiss/German clocks (cuckoo clocks) or the clock itself.
• n. Someone found where they shouldn't be (used especially in the phrase a cuckoo in the nest).
• n. Someone who is crazy.
• v. To make the call of a cuckoo.
• v. To repeat something incessantly.

fathead

• n. (derogatory) An idiot; a fool.
• n. (zoology) A cyprinoid fish of the Mississippi valley, Pimephales promelas, the black-headed minnow.
• n. (zoology) A labroid food fish of California; the redfish.

fool

• n. (pejorative) A person with poor judgment or little intelligence.
• n. (historical) A jester; a person whose role was to entertain a sovereign and the court (or lower personages).
• n. (informal) Someone who derives pleasure from something specified.
• n. (slang) Buddy, dude, person.
• n. (cooking) A type of dessert made of puréed fruit and custard or cream.
• n. (often capitalized, Fool) A particular card in a tarot deck.
• v. To trick; to make a fool of someone.
• v. To play the fool; to trifle; to toy; to spend time in idle sport or mirth.

goof

• n. (US) A mistake or error.
• n. (US) A foolish and/or silly person; a goofball.
• n. (Canada, prison slang) A child molester.
• v. (US) To make a mistake.
• v. (US) To engage in mischief.

goofball

• n. (informal, often derogatory) A foolish or silly person.
• n. (informal) A pill or tablet containing a pharmaceutical which has hypnotic or intoxicating effects, especially…
• adj. Silly.

goose

• n. Any of various grazing waterfowl of the family Anatidae, which have feathers and webbed feet and are capable…
• n. The flesh of the goose used as food.
• n. (slang) A silly person.
• n. (archaic) A tailor's iron, heated in live coals or embers, used to press fabrics.
• n. (South Africa, slang, dated) A young woman or girlfriend.
• v. (slang) To sharply poke or pinch someone's buttocks. Derived from a goose's inclination to bite at a retreating…
• v. To stimulate, to spur.
• v. (slang) To gently accelerate an automobile or machine, or give repeated small taps on the accelerator.
• v. (British slang) Of private-hire taxi drivers, to pick up a passenger who has not pre-booked a cab. This…

jack

• n. A mechanical device used to raise and (temporarily) support a heavy object, e.g. screw jack, scissor jack,…
• n. A man or men in general.
• n. A male animal.
• n. A male ass.
• n. (card games) A playing card with the letter "J" and the image of a knave or prince on it, the eleventh…
• n. (cricket) The eleventh batsman to come to the crease in an innings, derived from the playing card.
• n. (archaic) A knave (a servant or later, a deceitful man).
• n. Mangifera caesia, related to the mango tree.
• n. A surface-mounted connector for electrical, especially telecommunications, equipment.
• n. (sports) A target ball in bowls, etc; a jack-ball.
• n. (games) A small, six-pointed playing piece used in the game of jacks.
• n. (colloquial, euphemistic) Nothing, jack shit.
• n. (nautical) A small flag at the bow of a ship.
• n. (nautical) A naval ensign flag flown from the main mast, mizzen mast, or the aft-most major mast of (especially)…
• n. (military) A coarse and cheap medieval coat of defense, especially one made of leather.
• n. A penny with a head on both sides, used for cheating.
• n. (slang) Money.
• n. (slang, Appalachians) A smooth often ovoid large gravel or small cobble in a natural water course.
• n. The freshwater pike, green pike or pickerel.
• n. A large California rockfish, the bocaccio, Sebastes paucispinis.
• n. Any of the marine fish in the family Carangidae.
• n. (obsolete, nautical) A sailor, a jacktar.
• n. (obsolete) A pitcher or can of waxed leather, supposed to resemble a jackboot; a black-jack.
• n. (Britain, dialect, obsolete) A drinking measure holding half a pint or, sometimes, a quarter of a pint.
• n. A mechanical contrivance, an auxiliary machine, or a subordinate part of a machine.
• n. Female ended electrical connector (see Electrical connector).
• n. Electrical connector in a fixed position (see Gender of connectors and fasteners).
• v. (transitive) To use a jack.
• v. (transitive) To raise or increase.
• v. To produce by freeze distillation; to distil (an alcoholic beverage) by freezing it and removing the ice…
• v. (transitive, colloquial) To steal something, typically an automobile. Shortened form of carjacking.
• v. (intransitive) To dance by moving the torso forward and backward in a rippling motion.
• n. (slang, baseball) A home run.
• v. (transitive, slang, baseball) To hit (the ball) hard; especially, to hit (the ball) out of the field,…
• n. A coarse mediaeval coat of defence, especially one made of leather.
• n. A jackfruit tree.

muggins

• n. A fool or idiot (especially as an ironic way of referring to oneself).
• n. (cribbage) The act of stealing another player's points because they either mis-pegged or counted up incorrectly.
• n. A game of dominoes in which the object is to make the sum of the two ends of the line some multiple of…
• n. A card game based on building in suits or matching exposed cards, the object being to get rid of one's…

sap

• n. (uncountable) The juice of plants of any kind, especially the ascending and descending juices or circulating…
• n. (uncountable) The sapwood, or alburnum, of a tree.
• n. (slang, countable) A simpleton; a saphead; a milksop; a naive person.
• n. (countable, US, slang) A short wooden club; a leather-covered hand weapon; a blackjack.
• v. (transitive, slang) To strike with a sap (with a blackjack).
• n. (military) A narrow ditch or trench made from the foremost parallel toward the glacis or covert way of…
• v. (transitive) To subvert by digging or wearing away; to mine; to undermine; to destroy the foundation of.
• v. (transitive, military) To pierce with saps.
• v. (transitive) To make unstable or infirm; to unsettle; to weaken.
• v. (transitive) To gradually weaken.
• v. (intransitive) To proceed by mining, or by secretly undermining; to execute saps.

saphead

• n. A simpleton, a stupid person.

tomfool

• adj. silly or stupid.
• n. a silly or stupid person.

twat

• n. (vulgar, slang) The vagina or vulva.
• n. (Britain, New Zealand, sometimes US, offensive, vulgar, slang) A contemptible and stupid person, idiot.
• v. (transitive, Britain, slang) To hit, slap.

zany

• adj. Unusual and bizarre in a funny, comical way; outlandish; clownish.
• adj. Ludicrously or incongruously comical.
• n. (obsolete) A fool or clown, especially one whose business on the stage is to imitate foolishly the actions…
• v. (obsolete) To mimic foolishly.