“I wouldn’t be such a mardy baby,” said his wife shortly.1913, D[avid] H[erbert] Lawrence, “The Casting Off of Morel—The Taking On of William”, in Sons and Lovers, London: Duckworth & Co. […], →OCLC, part I, page 47:
1 more example
When our Jonathan’s poorly...he’s mardy, very mardy....1984 Food, Health, and Identity, Patricia Caplan http://books.google.com/books?ie=UTF-8&hl=en&id=BQNo4iK0QRAC&pg=PA39&lpg=PA39&sig=WSvTrhLM5ZsqucAxAXBZQPfJa-I [1997 edition]
2
East Midlands, Yorkshire Non-cooperative, bad-tempered or terse in communication; grumpy.
Well, now then mardy bum / Oh, I'm in trouble again, aren't I?2006, Alex Turner, “Mardy Bum”, performed by Arctic Monkeys:
Sometimes my mum’s in a mardy and she says she doesn’t care about us — but she does really.2001, Creating a Safe Place, NCH Children and Families Project http://books.google.com/books?ie=UTF-8&hl=en&id=Z_it9hcSUWsC&pg=PA87&lpg=PA87&sig=HVq97Wzcn-4XqYc0kSVXoUyP1vQ [2003 edition]