Definition of "arsey"

First few months in, I was arsey as hell. Thought they were a right bunch of wankers.

2000, Peter Billingham, Sensing the City Through Television: Urban Identities in Fictional Drama, page 50

"Oh, we had that singer in the other day and they were really arsey with us, and we only kept them waiting half an hour' - and I go, 'Hang on a minute, that's a long time and they've probably been doing lots of work that day and I think that it's actually justified for them to get annoyed.'"

2002 October 28, Simon Hattenstone, quoting Sophie Ellis-Bextor, “Sophie's world”, in The Guardian‎

Work experience as an arsey teenager is pretty straightforward: disappear into the storeroom, smoke a few cigarettes, text your mates and watch the minute hand tick slowly by. If there's nowhere suitable to hide, all you need is a vacant computer and you can chat to your skiving associate in the building next door.

2007 April 30, Jon Bentham, “How to...... do work experience”, in The Guardian‎

Maybe Hanna Frost, for all of her arsey mannerisms, really did know what she was doing.

2011, Lotte Daley, Faking It‎, Penguin