A carbomb, also calle an Irish carbomb, is a boilermaker made with stout (for example Guinness), Irish Cream (e.g. Baileys) and Irish whiskey (e.g. Jameson). The name references the drink's Irish components and the car bombings used most notoriously by the Provisional Irish Republican Army (PIRA) during The Troubles. The Jameson is floated on top of the Baileys in a shot glass, and the shot glass is then dropped into the stout. Once mixed the drink must be consumed quickly, because it will curdle.