a pain in the arse

pain in the arse

An especially irritating, aggravating, or obnoxious person, thing, or situation. Primarily heard in UK. You know, Jack, you may be my friend, but you can be a real pain in the arse sometimes! This calculus homework is a real pain in the arse. It's not that I don't understand it, it's just so tedious!
See also: arse, pain

a pain in the arse

BRITISH, INFORMAL, VERY RUDE or

a pain in the ass

AMERICAN, INFORMAL, VERY RUDE
COMMON If someone or something is a pain in the arse, they are very annoying. These people were an almighty pain in the arse to deal with. Note: The words bum and backside can be used instead of arse and the word butt can be used instead of ass. When I was bored, I was a pain in the bum. All this airport security's a pain in the butt. Note: `Arse', `ass', `backside', `bum' and `butt' are all informal words for `bottom'.
See also: arse, pain
References in periodicals archive ?
Boxing pundit Steve Bunce, for example, said of Bruno's ex-wife Laura, who took over his affairs and ran his business in something of an an abrasive manner: "I don't suppose people will tell you she was a pain in the arse to deal with, but she was.
Cut to Frank Maloney, Lennox Lewis's manager at the time he beat Bruno, who said: "She was a pain in the arse to deal with.
An officer then told me I was a pain in the arse and slammed the phone down.
Of course there's the inevitable Mick crap that gets to be a pain in the arse - but when you're in your 40s, you realize if you really want to do something, you'd better get on with it.