ass - Dictionary Definition : Vocabulary.com

Literally, your ass is your buttocks. In slang, an ass is a jerk or an idiot. Neither is highly regarded.

When people are being slangy or folksy, you hear this word a lot: "Get off your ass!" "Watch your ass!" "Why are you such an ass?" "Get your ass in here." Though this isn't one of the very worst swear words, it is considered harsher than butt and lots of people consider ass to be an inappropriate word. You would be a lot better off using softer words like bottom or tush in most situations. Sometimes ass can also mean sex — another use worth avoiding.

PRIMARY MEANINGS OF: ass

1	n	hardy and sure-footed animal smaller and with longer ears than the horse
2	n	the fleshy part of the human body that you sit on

FULL DEFINITIONS OF: ass

1

n hardy and sure-footed animal smaller and with longer ears than the horse

Types:: show 9 types...; hide 9 types...; Equus asinus, domestic ass, donkey
domestic beast of burden descended from the African wild ass; patient but stubborn; jack, jackass
male donkey; jennet, jenny, jenny ass
female donkey; wild ass
any of several equine mammals of Asia and northeast Africa; burro
small donkey used as a pack animal; moke
British informal for donkey; African wild ass, Equus asinus
a wild ass of Africa; Equus kiang, kiang
wild ass of Tibet and Mongolia; Equus hemionus, onager
Asiatic wild ass

Type of:: equid, equine
hoofed mammals having slender legs and a flat coat with a narrow mane along the back of the neck

n a pompous fool

Type of:: fool, muggins, sap, saphead, tomfool
a person who lacks good judgment

2

n the fleshy part of the human body that you sit on

Synonyms:: arse, backside, behind, bottom, bum, buns, butt, buttocks, can, derriere, fanny, fundament, hind end, hindquarters, keister, nates, posterior, prat, rear, rear end, rump, seat, stern, tail, tail end, tooshie, tush

Type of:: body part
any part of an organism such as an organ or extremity

n slang for sexual intercourse

Synonyms:: fuck, fucking, nookie, nooky, piece of ass, piece of tail, roll in the hay, screw, screwing, shag, shtup

Type of:: carnal knowledge, coition, coitus, congress, copulation, intercourse, relation, sex act, sexual congress, sexual intercourse, sexual relation
the act of sexual procreation between a man and a woman; the man's penis is inserted into the woman's vagina and excited until orgasm and ejaculation occur