''Dick in the arse''is a term used by a group of people in the Donaghmede/Bayside area of Dublin. To describe anything from falling over,stubbing your toe to a person not being a decent person. Or in may cases used just to describe the weather.
Origins of way the term is used is unknown
that chap just skipped the Q ''dick in the arse''
you walk out your front door its raining out ''dick in the arse