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 'Bang' graphic poster, translates to describe a smell, usually an unpleasant one. As in...'The bang of onions off your man on the bus this morning'. Add a frame or personalise it with your own colour choice and/or text.