Cool Irish Slang posters, not at all 'diddley eye'. In Ireland, we have a fairly random, and often completely impenetrable, number of Irish slang words and expressions. The 'Arseways' graphic poster, used by the Irish when things are going wrong, as in... I couldn’t get the bread out of the toaster because it was jammed in arseways. Add a frame or personalise it with your own colour choice and/or text.