Irish Car Bomb is a cocktail made with Dark Irish Dry Stout, Irish Cream Liqueur, and Irish Whiskey. The drink is said to have been invented in 1979 by Charles Burke Cronin Oat, a bartender from Connecticut. So what does an Irish Car Bomb taste like? Well, it tastes like a creamy, chocolatey Guinness Stout with a kick of whiskey. The drink is notorious for being very strong and can easily sneak up on you if you're not careful!