Definition of "mullarkey"

Look, the quare fellow’s got to be buried in the morning, whether we like it or not, so cut the mullarkey and get back to work.

1956, Brendan Behan, The Quare Fellow, page 60

Hey, he's a really nice guy. Really nice. And on top of it all he's getting away with this writing mullarkey.

2003, Rohan Candappa, “About the Author (And Why You should Buy More of His Books)”, in University Challenged: The Unofficial Student Guide, London: Ebury Press; republished London: Ebury Digital, 2010,

This book isn't about the application process itself – how best to complete your UCAS form, what the codes are for exam awarding bodies, what to say in interviews and all that mullarkey.

2004, Johnny Rich, “The Application Process”, in Ruth Bushi, editor, The Push Guide to Choosing a University, 2nd edition, Cheltenham, Gloucestershire: Nelson Thornes, page 68