UK and ANZ, US ass [noun] [C] [slightly taboo] [slang] - the part of your body that you sit on; your bottomI got a sore arse from sitting on that hard chair.(UK slang) If someone says my arse, they do not believe what you have just said."Lisa's not coming into work today - she says she's got food poisoning." "Food poisoning, my arse! I bet she's got a hangover from last night."If you do not know/cannot tell your arse from your elbow, you are lacking in knowledge.If someone tells you to move/shift your arse, they are rudely telling you to hurry up, or to get out of their way.If someone tells you to get off your arse, or to get your arse in gear, they are rudely telling you to do some work or to hurry.(UK) If you go arse over tit/tip or arse about face (US ass over teakettle), you are upside down with your feet above your head, usually because you have fallen.I fell off my bike and went arse over tit.(UK) An arse-licker (US ass-licker) or arse-kisser (US ass-kisser) is a person who tries to get other people to do things for them by being extremely pleasant to them in a way which is not sincere.
ARSE
Meaning of ARSE in English
Cambridge English vocab. Кембриджский английский словарь. 2012