I heard the nick-name Skin-the-goat used around Dublin (probably named after Skin-the-goat Fitzharris of Invincibles' fame).

When we kids looked for something it was always "Up in Nelly's room!"
And where was Nelly's room? "At the back of the Pipes" (that's at the back of Guinness's brewery)

If we were restless, my granny (from Dundalk) would tell us to "stop foosterin'--you're like a hen on a hot griddle!"

A bad-looking woman had "a face like an accident on its way to a crash", or "a plateful of mortal sins".

A smart or devious person was "cute as a shithouse rat".

Don